Chưa có sản phẩm trong giỏ hàng.
Chuyên đề Vi-et và ứng dụng
</p> </div> <div class="woocommerce-Tabs-panel woocommerce-Tabs-panel--additional_information panel entry-content wc-tab" id="tab-additional_information" role="tabpanel" aria-labelledby="tab-title-additional_information"> <h2>Thông tin bổ sung</h2> <table class="woocommerce-product-attributes shop_attributes"> <tr class="woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_gia"> <th class="woocommerce-product-attributes-item__label">Giá</th> <td class="woocommerce-product-attributes-item__value"><p><a href="https://thaycuong.net/gia/mien-phi/" rel="tag">Miễn phí</a></p> </td> </tr> <tr class="woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_mon-hoc"> <th class="woocommerce-product-attributes-item__label">Môn học</th> <td class="woocommerce-product-attributes-item__value"><p>Toán</p> </td> </tr> <tr class="woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_phan-loai"> <th class="woocommerce-product-attributes-item__label">Phân loại</th> <td class="woocommerce-product-attributes-item__value"><p><a href="https://thaycuong.net/phan-loai/chuyen-de/" rel="tag">Chuyên đề</a></p> </td> </tr> </table> </div> <div class="woocommerce-Tabs-panel woocommerce-Tabs-panel--reviews panel entry-content wc-tab" id="tab-reviews" role="tabpanel" aria-labelledby="tab-title-reviews"> <div class="wpdiscuz_top_clearing"></div> <div id='comments' class='comments-area'><div id='respond' style='width: 0;height: 0;clear: both;margin: 0;padding: 0;'></div> <div id="wpdcom" class="wpdiscuz_unauth wpd-default wpd-layout-2 wpd-comments-open"> <div class="wc_social_plugin_wrapper"> </div> <div class="wpd-form-wrap"> <div class="wpd-form-head"> <div class="wpd-sbs-toggle"> <i class="far fa-envelope"></i> <span class="wpd-sbs-title">Đăng ký</span> <i class="fas fa-caret-down"></i> </div> <div class="wpd-auth"> <div class='wpd-social-login'><span class='wpd-connect-with'>Kết nối với</span><span class='wpdsn wpdsn-fb wpdiscuz-login-button' wpd-tooltip='Facebook'><i class='fab fa-facebook'></i></span><span class='wpdsn wpdsn-gg wpdiscuz-login-button' wpd-tooltip='Google'><i class='fab fa-google'></i></span><div class='wpdiscuz-social-login-spinner'><i class='fas fa-spinner fa-pulse'></i></div><div class='wpd-clear'></div></div> <div class="wpd-login"> <div class='wpd-sep'></div><a rel="nofollow" href="https://thaycuong.net/wp-login.php?redirect_to=https%3A%2F%2Fthaycuong.net%2Fcua-hang%2Flop-9%2Fchuyen-de-vi-et-va-ung-dung%2F"><i class='fas fa-sign-in-alt'></i> Đăng nhập</a> </div> </div> </div> <div class="wpd-social-login-agreement" style="display: none;"> <div class="wpd-agreement-title">Tôi cho phép tạo một tài khoản</div> <div class="wpd-agreement">Khi bạn đăng nhập lần đầu tiên bằng nút Đăng nhập xã hội, chúng tôi thu thập thông tin hồ sơ công khai tài khoản của bạn do nhà cung cấp Đăng nhập xã hội chia sẻ, dựa trên cài đặt quyền riêng tư của bạn. Chúng tôi cũng lấy địa chỉ email của bạn để tự động tạo tài khoản cho bạn trên trang web của chúng tôi. Khi tài khoản của bạn được tạo, bạn sẽ đăng nhập vào tài khoản này.</div> <div class="wpd-agreement-buttons"> <div class="wpd-agreement-buttons-right"><span class="wpd-agreement-button wpd-agreement-button-disagree">Không đồng ý</span><span class="wpd-agreement-button wpd-agreement-button-agree">Đồng ý</span></div> <div class="wpd-clear"></div> </div> </div> <div class="wpdiscuz-subscribe-bar wpdiscuz-hidden"> <form action="https://thaycuong.net/wp-admin/admin-ajax.php?action=wpdAddSubscription" method="post" id="wpdiscuz-subscribe-form"> <div class="wpdiscuz-subscribe-form-intro">Thông báo về </div> <div class="wpdiscuz-subscribe-form-option" style="width:40%;"> <select class="wpdiscuz_select" name="wpdiscuzSubscriptionType" > <option value="post">nhận xét tiếp theo mới</option> <option value="all_comment" >trả lời mới cho nhận xét của tôi</option> </select> </div> <div class="wpdiscuz-item wpdiscuz-subscribe-form-email"> <input class="email" type="email" name="wpdiscuzSubscriptionEmail" required="required" value="" placeholder="E-mail"/> </div> <div class="wpdiscuz-subscribe-form-button"> <input id="wpdiscuz_subscription_button" class="wpd-prim-button wpd_not_clicked" type="submit" value="›" name="wpdiscuz_subscription_button" /> </div> <div class="wpdiscuz-subscribe-agreement"> <input id="show_subscription_agreement" type="checkbox" required="required" name="show_subscription_agreement" value="1"> <label for="show_subscription_agreement">Tôi cho phép sử dụng địa chỉ email của mình và gửi thông báo về các nhận xét và phản hồi mới (bạn có thể hủy đăng ký bất kỳ lúc nào).</label> </div> <input type="hidden" id="wpdiscuz_subscribe_form_nonce" name="wpdiscuz_subscribe_form_nonce" value="2f1cedca41" /><input type="hidden" name="_wp_http_referer" value="/cua-hang/lop-9/chuyen-de-vi-et-va-ung-dung/" /> </form> </div> <div class="wpd-form wpd-form-wrapper wpd-main-form-wrapper" id='wpd-main-form-wrapper-0_0'> <form method="post" enctype="multipart/form-data" data-uploading="false" class="wpd_comm_form wpd_main_comm_form" > <div class="wpd-field-comment"> <div class="wpdiscuz-item wc-field-textarea"> <div class="wpdiscuz-textarea-wrap "> <div class="wpd-avatar"> <img alt='guest' src='https://secure.gravatar.com/avatar/?s=56&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/?s=112&d=mm&r=g 2x' class='avatar avatar-56 photo avatar-default' height='56' width='56' loading='lazy' decoding='async'/> </div> <div id="wpd-editor-wraper-0_0" style="display: none;"> <div id="wpd-editor-char-counter-0_0" class="wpd-editor-char-counter"></div> <label style="display: none;" for="wc-textarea-0_0">Label</label> <textarea id="wc-textarea-0_0" name="wc_comment" class="wc_comment wpd-field"></textarea> <div id="wpd-editor-0_0"></div> <div id="wpd-editor-toolbar-0_0"> <button title="In đậm" class="ql-bold" ></button> <button title="In nghiêng" class="ql-italic" ></button> <button title="Gạch dưới" class="ql-underline" ></button> <button title="Đình công" class="ql-strike" ></button> <button title="Danh sách đã xếp thứ tự" class="ql-list" value='ordered' ></button> <button title="Danh sách chưa sắp xếp" class="ql-list" value='bullet' ></button> <button title="Trích dẫn" class="ql-blockquote" ></button> <button title="Code Block" class="ql-code-block" ></button> <button title="Link" class="ql-link" ></button> <button title="Mã nguồn" class="ql-sourcecode" data-wpde_button_name='sourcecode'>{}</button> <button title="Spoiler" class="ql-spoiler" data-wpde_button_name='spoiler'>[+]</button> <div class="wpd-editor-buttons-right"> </div> </div> </div> </div> </div> </div> <div class="wpd-form-foot" style='display:none;'> <div class="wpdiscuz-textarea-foot"> <div class="wpdiscuz-button-actions"></div> </div> <div class="wpd-form-row"> <div class="wpd-form-col-left"> <div class="wpdiscuz-item wc_name-wrapper"> <input id="wc_name-0_0" value="" required='required' aria-required='true' class="wc_name wpd-field" type="text" name="wc_name" placeholder="Tên*" maxlength="50" pattern='.{3,50}' title=""> <label for="wc_name-0_0" class="wpdlb">Tên*</label> </div> <div class="wpdiscuz-item wc_email-wrapper"> <input id="wc_email-0_0" value="" required='required' aria-required='true' class="wc_email wpd-field" type="email" name="wc_email" placeholder="Email*" /> <label for="wc_email-0_0" class="wpdlb">Email*</label> </div> </div> <div class="wpd-form-col-right"> <div class="wc-field-submit"> <label class="wpd_label" wpd-tooltip="Thông báo về câu trả lời mới cho nhận xét này"> <input id="wc_notification_new_comment-0_0" class="wc_notification_new_comment-0_0 wpd_label__checkbox" value="comment" type="checkbox" name="wpdiscuz_notification_type" checked='checked'/> <span class="wpd_label__text"> <span class="wpd_label__check"> <i class="fas fa-bell wpdicon wpdicon-on"></i> <i class="fas fa-bell-slash wpdicon wpdicon-off"></i> </span> </span> </label> <input id="wpd-field-submit-0_0" class="wc_comm_submit wpd_not_clicked wpd-prim-button" type="submit" name="submit" value="Gửi bình luận" /> </div> </div> <div class="clearfix"></div> </div> </div> <input type="hidden" class="wpdiscuz_unique_id" value="0_0" name="wpdiscuz_unique_id"> </form> </div> <div id="wpdiscuz_hidden_secondary_form" style="display: none;"> <div class="wpd-form wpd-form-wrapper wpd-secondary-form-wrapper" id='wpd-secondary-form-wrapper-wpdiscuzuniqueid' style='display: none;'> <div class="wpd-secondary-forms-social-content"> <div class="wpd-social-login-agreement" style="display: none;"> <div class="wpd-agreement-title">Tôi cho phép tạo một tài khoản</div> <div class="wpd-agreement">Khi bạn đăng nhập lần đầu tiên bằng nút Đăng nhập xã hội, chúng tôi thu thập thông tin hồ sơ công khai tài khoản của bạn do nhà cung cấp Đăng nhập xã hội chia sẻ, dựa trên cài đặt quyền riêng tư của bạn. Chúng tôi cũng lấy địa chỉ email của bạn để tự động tạo tài khoản cho bạn trên trang web của chúng tôi. Khi tài khoản của bạn được tạo, bạn sẽ đăng nhập vào tài khoản này.</div> <div class="wpd-agreement-buttons"> <div class="wpd-agreement-buttons-right"><span class="wpd-agreement-button wpd-agreement-button-disagree">Không đồng ý</span><span class="wpd-agreement-button wpd-agreement-button-agree">Đồng ý</span></div> <div class="wpd-clear"></div> </div> </div> </div> <div class="clearfix"></div> <form method="post" enctype="multipart/form-data" data-uploading="false" class="wpd_comm_form wpd-secondary-form-wrapper" > <div class="wpd-field-comment"> <div class="wpdiscuz-item wc-field-textarea"> <div class="wpdiscuz-textarea-wrap "> <div class="wpd-avatar"> <img alt='guest' src='https://secure.gravatar.com/avatar/?s=56&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/?s=112&d=mm&r=g 2x' class='avatar avatar-56 photo avatar-default' height='56' width='56' loading='lazy' decoding='async'/> </div> <div id="wpd-editor-wraper-wpdiscuzuniqueid" style="display: none;"> <div id="wpd-editor-char-counter-wpdiscuzuniqueid" class="wpd-editor-char-counter"></div> <label style="display: none;" for="wc-textarea-wpdiscuzuniqueid">Label</label> <textarea id="wc-textarea-wpdiscuzuniqueid" name="wc_comment" class="wc_comment wpd-field"></textarea> <div id="wpd-editor-wpdiscuzuniqueid"></div> <div id="wpd-editor-toolbar-wpdiscuzuniqueid"> <button title="In đậm" class="ql-bold" ></button> <button title="In nghiêng" class="ql-italic" ></button> <button title="Gạch dưới" class="ql-underline" ></button> <button title="Đình công" class="ql-strike" ></button> <button title="Danh sách đã xếp thứ tự" class="ql-list" value='ordered' ></button> <button title="Danh sách chưa sắp xếp" class="ql-list" value='bullet' ></button> <button title="Trích dẫn" class="ql-blockquote" ></button> <button title="Code Block" class="ql-code-block" ></button> <button title="Link" class="ql-link" ></button> <button title="Mã nguồn" class="ql-sourcecode" data-wpde_button_name='sourcecode'>{}</button> <button title="Spoiler" class="ql-spoiler" data-wpde_button_name='spoiler'>[+]</button> <div class="wpd-editor-buttons-right"> </div> </div> </div> </div> </div> </div> <div class="wpd-form-foot" style='display:none;'> <div class="wpdiscuz-textarea-foot"> <div class="wpdiscuz-button-actions"></div> </div> <div class="wpd-form-row"> <div class="wpd-form-col-left"> <div class="wpdiscuz-item wc_name-wrapper"> <input id="wc_name-wpdiscuzuniqueid" value="" required='required' aria-required='true' class="wc_name wpd-field" type="text" name="wc_name" placeholder="Tên*" maxlength="50" pattern='.{3,50}' title=""> <label for="wc_name-wpdiscuzuniqueid" class="wpdlb">Tên*</label> </div> <div class="wpdiscuz-item wc_email-wrapper"> <input id="wc_email-wpdiscuzuniqueid" value="" required='required' aria-required='true' class="wc_email wpd-field" type="email" name="wc_email" placeholder="Email*" /> <label for="wc_email-wpdiscuzuniqueid" class="wpdlb">Email*</label> </div> </div> <div class="wpd-form-col-right"> <div class="wc-field-submit"> <label class="wpd_label" wpd-tooltip="Thông báo về câu trả lời mới cho nhận xét này"> <input id="wc_notification_new_comment-wpdiscuzuniqueid" class="wc_notification_new_comment-wpdiscuzuniqueid wpd_label__checkbox" value="comment" type="checkbox" name="wpdiscuz_notification_type" checked='checked'/> <span class="wpd_label__text"> <span class="wpd_label__check"> <i class="fas fa-bell wpdicon wpdicon-on"></i> <i class="fas fa-bell-slash wpdicon wpdicon-off"></i> </span> </span> </label> <input id="wpd-field-submit-wpdiscuzuniqueid" class="wc_comm_submit wpd_not_clicked wpd-prim-button" type="submit" name="submit" value="Gửi bình luận" /> </div> </div> <div class="clearfix"></div> </div> </div> <input type="hidden" class="wpdiscuz_unique_id" value="wpdiscuzuniqueid" name="wpdiscuz_unique_id"> </form> </div> </div> </div> <div id="wpd-threads" class="wpd-thread-wrapper"> <div class="wpd-thread-head"> <div class="wpd-thread-info wpd-reviews-tab" data-comments-count="0"> <svg id='Capa_1' enable-background='new 0 0 512 512' height='24' viewBox='0 0 512 512' width='24' xmlns='https://www.w3.org/2000/svg'><path d='m144.789 277.138-8.789-17.593-8.789 17.593c-2.183 4.365-6.357 7.397-11.177 8.13l-19.468 2.93 14.019 13.799c3.472 3.413 5.068 8.32 4.263 13.14l-3.223 19.409 17.461-9.067c2.168-1.128 4.541-1.685 6.914-1.685s4.746.557 6.914 1.685l17.461 9.067-3.223-19.409c-.806-4.819.791-9.727 4.263-13.14l14.019-13.799-19.468-2.93c-4.82-.733-8.994-3.765-11.177-8.13z'/><path d='m384.789 277.138-8.789-17.593-8.789 17.593c-2.183 4.365-6.357 7.397-11.177 8.13l-19.468 2.93 14.019 13.799c3.472 3.413 5.068 8.32 4.263 13.14l-3.223 19.409 17.461-9.067c2.168-1.128 4.541-1.685 6.914-1.685s4.746.557 6.914 1.685l17.461 9.067-3.223-19.409c-.806-4.819.791-9.727 4.263-13.14l14.019-13.799-19.468-2.93c-4.82-.733-8.994-3.765-11.177-8.13z'/><path d='m466 121h-125.387l3.864 23.291c2.827 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wpd-tooltip="Bình luận phản ứng nhiều nhất"><i class="fas fa-bolt"></i></div> <div class="wpd-filter wpdf-hottest wpd_not_clicked" wpd-tooltip="Chủ đề bình luận hấp dẫn nhất"><i class="fas fa-fire"></i></div> </div> </div> <div class="wpd-comment-info-bar"> <div class="wpd-current-view"><i class="fas fa-quote-left"></i> Phản hồi nội tuyến</div> <div class="wpd-filter-view-all">Xem tất cả các bình luận</div> </div> <div class="wpd-thread-list"> <div class="wpdiscuz-comment-pagination" style='display:none;'> <div class="wpd-load-more-submit-wrap"> <button name="submit" data-lastparentid="0" class="wpd-load-more-submit wpd-loaded wpd-prim-button"> Tải thêm nhận xét </button> </div> <span id="wpdiscuzHasMoreComments" data-is_show_load_more="0"></span> </div> </div> </div> </div> </div> <div id="wpdiscuz-loading-bar" class="wpdiscuz-loading-bar-unauth"></div> <div id="wpdiscuz-comment-message" class="wpdiscuz-comment-message-unauth"></div> </div> </div> <section class="related products"> 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