{"id":1410,"date":"2026-01-16T14:58:21","date_gmt":"2026-01-16T14:58:21","guid":{"rendered":"https:\/\/www.morphmatters.com\/AME\/?p=1410"},"modified":"2026-01-16T17:03:40","modified_gmt":"2026-01-16T17:03:40","slug":"fallacies-about-the-derivative-of-the-trigonometric-sine-function","status":"publish","type":"post","link":"https:\/\/www.morphmatters.com\/AME\/fallacies-about-the-derivative-of-the-trigonometric-sine-function\/","title":{"rendered":"Fallacies about the Derivative of the Trigonometric Sine Function"},"content":{"rendered":"\n<div style=\"height:14px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>TOH Tin Lam, TAY Eng Guan, and TONG Cherng Luen<\/strong><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">National Institute of Education<br>Nanyang Technological University<br>Singapore<\/h4>\n\n\n\n<p>Published in&nbsp;<a href=\"https:\/\/ame.org.sg\/tme\/\">The Mathematician Educator<\/a>, 2021, Vol 2, No. 1, pp 1-10.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Abstract<\/h3>\n\n\n\n<p>In this paper, several fallacies about the extension of the formula\u00a0<em>&lt;&lt;insert maths formula>><\/em>\u00a0to the erroneous formula\u00a0<em>&lt;&lt;insert maths formula>><\/em>\u00a0are discussed. In a Commognitive Theory Framework, misconceptions by \u2018newcomers\u2019 can be traced to the use of the word \u201cunit\u201d.<\/p>\n\n\n\n<p><a href=\"https:\/\/ame.org.sg\/TME\/TMEv2n1\/1-Fallacies%20about%20the%20formula%20for%20the%20derivative%20of%20sine%20function.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Download pdf full text<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>by TOH Tin Lam, TAY Eng Guan and TONG Cherng Luen (pp. 1-10)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","pmpro_default_level":"","footnotes":""},"categories":[43],"tags":[],"class_list":["post-1410","post","type-post","status-publish","format-standard","hentry","category-tme2","pmpro-has-access"],"_links":{"self":[{"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/posts\/1410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/comments?post=1410"}],"version-history":[{"count":2,"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/posts\/1410\/revisions"}],"predecessor-version":[{"id":1412,"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/posts\/1410\/revisions\/1412"}],"wp:attachment":[{"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/media?parent=1410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/categories?post=1410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.morphmatters.com\/AME\/wp-json\/wp\/v2\/tags?post=1410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}