Summary

This document contains practice questions on trigonometric identities. It includes various trigonometric equations and identities for solving and proving. The document is aimed at secondary school students.

Full Transcript

‫التاريخ‪1445/ / :‬هـ‬ ‫املوضوع‪ : 3-3 :‬املتطابقات املثلثية ملجموع زاويتين والفرق بينهما‬ ‫تستعمل املتطابقات املثلثية ملجموع زاويتين والفرق بينهما أيضا‬ ‫إثبات صحة املتط...

‫التاريخ‪1445/ / :‬هـ‬ ‫املوضوع‪ : 3-3 :‬املتطابقات املثلثية ملجموع زاويتين والفرق بينهما‬ ‫تستعمل املتطابقات املثلثية ملجموع زاويتين والفرق بينهما أيضا‬ ‫إثبات صحة املتطابقات املثلثية‬ ‫‪3‬‬ ‫في إثبات صحة املتطابقات‪.‬‬ ‫تحقق من فهمك ‪ :‬صـ ‪154‬ـ ـ ـ ـ ـ‬ ‫𝐧𝐚𝐭‬ ‫𝝅‬ ‫= 𝜽‪+‬‬ ‫𝜽 𝐧𝐚𝐭‪𝟏+‬‬ ‫‪)3B‬‬ ‫‪. 𝒔𝒊𝒏 𝟗𝟎° − 𝜽 = 𝐜𝐨𝐬 𝜽 )3A‬‬ ‫𝟒‬ ‫𝜽 𝐧𝐚𝐭‪𝟏−‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫تدرب‪ :‬صـ ‪154‬ـ ـ ـ ـ ـ‬ ‫𝐬𝐨𝐜‬ ‫𝝅‬ ‫‪+ 𝜽 = − 𝐬𝐢𝐧 𝜽 )14‬‬ ‫‪𝐬𝐢𝒏 𝜽 + 𝝅 = − 𝐬𝐢𝐧 𝜽 (13‬‬ ‫𝟐‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫‪..........................................................................................................‬‬ ‫𝑨𝒔𝒐𝒄𝜽𝒏𝒂𝒕‪𝒔𝒊𝒏𝑨+‬‬ ‫حيث ‪ 𝐀,𝜽.‬زاويتان حادتان‬ ‫‪= 𝐭𝐚𝐧(𝑨 + 𝜽) )23‬‬ ‫𝑨𝒏𝒊𝒔𝜽𝒏𝒂𝒕‪𝒄𝒐𝒔𝑨−‬‬ ‫‪...................................................................................................................................................................................................................................‬‬ ‫‪...................................................................................................................................................................................................................................‬‬ ‫‪...................................................................................................................................................................................................................................‬‬ ‫‪...................................................................................................................................................................................................................................‬‬ ‫‪...................................................................................................................................................................................................................................‬‬ ‫‪20‬‬ ‫التاريخ‪1445/ / :‬هـ‬ ‫املوضوع‪ : 3-3 :‬تابع املتطابقات املثلثية ملجموع زاويتين والفرق بينهما‬ ‫مهارات التفكيرالعليا‪ :‬صـ ‪155‬ـ ـ ـ ـ ـ‬ ‫‪.‬‬ ‫‪.........................................................................................................................................................................‬‬ ‫‪……………………………………………………………………………………...........................................................................‬‬ ‫‪...........................................................................................................................................................................‬‬ ‫‪.........................................................‬‬ ‫‪..........................................................................................................................................‬‬ ‫‪....................................................................................................................................‬‬ ‫‪..........................................................................................................................................‬‬ ‫‪..........................................................................‬‬ ‫‪.............................................................................................................................................................................‬‬ ‫‪.....................................................................‬‬ ‫تدرب على االختبار‪ :‬صـ ‪155‬ـ ـ ـ ـ ـ‬ ‫‪..........................................................................................................................................‬‬ ‫‪....................................................................................................................................‬‬ ‫‪............................................................................................................................................................................‬‬ ‫‪....................................................................................................................................‬‬ ‫‪..........................................................................................................................................‬‬ ‫‪........................................................................................................‬‬ ‫‪.....................................................................................................‬‬ ‫‪ (44‬سؤال ذو إجابة قصيرة‪ :‬إذا كان 𝟎 = 𝟑 ‪𝐜𝐨𝐬 𝜽 + 𝟎.‬‬ ‫‪......................................................................................................‬‬ ‫𝝅𝟑‬ ‫حيث < 𝜽 < 𝝅‬ ‫𝟐‬ ‫فأوجد القيمة الدقيقة لـ𝜽 𝐭𝐨𝐜 ‪....................................................................................................................................‬‬ ‫‪......................................................................................................................................................................................................................................‬‬ ‫‪21‬‬

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