{"id":96776,"date":"2022-02-12T18:56:16","date_gmt":"2022-02-12T13:26:16","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=96776"},"modified":"2022-05-24T12:07:18","modified_gmt":"2022-05-24T06:37:18","slug":"study-material-ncert-solutions-for-class-10-maths-chapter-8-introduction-to-trigonometry-ex-8-3","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-material\/ncert-solutions-for-class-10\/maths\/chapter-8\/introduction-to-trigonometry\/ex-8-3\/","title":{"rendered":"NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.3"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/ncert-solutions-for-class-10\/maths\/chapter-8\/introduction-to-trigonometry\/ex-8-3\/#Topics_and_Sub_Topics_in_Class_10_Maths_Chapter_8_Introduction_to_Trigonometry\" title=\"Topics and Sub Topics in Class 10 Maths Chapter 8 Introduction to Trigonometry:\">Topics and Sub Topics in Class 10 Maths Chapter 8 Introduction to Trigonometry:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/ncert-solutions-for-class-10\/maths\/chapter-8\/introduction-to-trigonometry\/ex-8-3\/#NCERT_Solutions_For_Class_10_Maths_Chapter_8_Introduction_to_Trigonometry_Ex_83\" title=\"NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.3\">NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.3<\/a><\/li><\/ul><\/nav><\/div>\n<p><span data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;Get Free NCERT Solutions for Class 10 Maths Chapter 7 Ex 7.1 Coordinate Geometry Class 10 Maths NCERT Solutions are extremely helpful while doing homework.Exercise 7.1 Class 10 Maths NCERT Solutions were prepared by Experienced LearnCBSE.in Teachers. Detailed answers of all the questions in Chapter 7Maths Class 10 Coordinate Geometry Exercise 7.1 Provided in NCERT Textbook\\n\\nYou can also download the free PDF of Chapter 7 Ex 7.1 Coordinate Geometry NCERT Solutions or save the solution images and take the print out to keep it handy for your exam preparation.&quot;}\" data-sheets-userformat=\"{&quot;2&quot;:448,&quot;9&quot;:0,&quot;10&quot;:1,&quot;11&quot;:4}\" data-sheets-formula=\"=CONCATENATE(&quot;Get Free NCERT Solutions for Class 10 Maths &quot;,R[0]C[1],&quot; &quot;,R[0]C[2],&quot; Class 10 Maths NCERT Solutions are extremely helpful while doing homework.&quot;,R[0]C[3],&quot; Class 10 Maths NCERT Solutions were prepared by Experienced LearnCBSE.in Teachers. Detailed answers of all the questions in &quot;,R[0]C[4],&quot;Maths Class 10 &quot;,R[0]C[2],&quot; &quot;,R[0]C[3],&quot; Provided in NCERT Textbook&quot;,R[0]C[5],R[0]C[5], &quot;You can also download the free PDF of &quot;,R[0]C[1],&quot; &quot;,R[0]C[2],&quot; NCERT Solutions or save the solution images and take the print out to keep it handy for your exam preparation.&quot;)\">Get Free NCERT Solutions for Class 10 Maths Chapter 8 Ex 8.3 Introduction to Trigonometry Class 10 Maths NCERT Solutions are extremely helpful while doing homework. Experienced Teachers prepared exercise 8.3 Class 10 Maths NCERT Solutions. Detailed answers to all the questions in Chapter 8 Maths Class 10 Coordinate Geometry Exercise 8.3 are Provided in NCERT Textbook.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Topics_and_Sub_Topics_in_Class_10_Maths_Chapter_8_Introduction_to_Trigonometry\"><\/span><span style=\"font-size: 12pt;\"><strong>Topics and Sub Topics in Class 10 Maths Chapter 8 Introduction to Trigonometry:<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table border=\"2\">\n<tbody>\n<tr>\n<td><strong>Section Name<\/strong><\/td>\n<td><strong>Topic Name<\/strong><\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Introduction to Trigonometry<\/td>\n<\/tr>\n<tr>\n<td>8.1<\/td>\n<td>Introduction<\/td>\n<\/tr>\n<tr>\n<td>8.2<\/td>\n<td>Trigonometric Ratios<\/td>\n<\/tr>\n<tr>\n<td>8.3<\/td>\n<td>Trigonometric Ratios Of Some Specific Angles<\/td>\n<\/tr>\n<tr>\n<td>8.4<\/td>\n<td>Trigonometric Ratios Of Complementary Angles<\/td>\n<\/tr>\n<tr>\n<td>8.5<\/td>\n<td>Trigonometric Identities<\/td>\n<\/tr>\n<tr>\n<td>8.6<\/td>\n<td>Summary<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>You can also download the free PDF of Chapter 8 Ex 8.3 Coordinate Geometry NCERT Solutions or save the solution images and take the printout to keep it handy for your exam preparation.<\/p>\n<table style=\"width: 45.6436%;\" border=\"2\">\n<tbody>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Board<\/strong><\/td>\n<td style=\"width: 45.6332%;\">CBSE<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Textbook<\/strong><\/td>\n<td style=\"width: 45.6332%;\">NCERT<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Class<\/strong><\/td>\n<td style=\"width: 45.6332%;\">Class 10<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Subject<\/strong><\/td>\n<td style=\"width: 45.6332%;\">Maths<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Chapter<\/strong><\/td>\n<td style=\"width: 45.6332%;\">Chapter 8<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Chapter Name<\/strong><\/td>\n<td style=\"width: 45.6332%;\"><span data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;Get Free NCERT Solutions for Class 10 Maths Chapter 7 Ex 7.1 Coordinate Geometry Class 10 Maths NCERT Solutions are extremely helpful while doing homework.Exercise 7.1 Class 10 Maths NCERT Solutions were prepared by Experienced LearnCBSE.in Teachers. Detailed answers of all the questions in Chapter 7Maths Class 10 Coordinate Geometry Exercise 7.1 Provided in NCERT Textbook\\n\\nYou can also download the free PDF of Chapter 7 Ex 7.1 Coordinate Geometry NCERT Solutions or save the solution images and take the print out to keep it handy for your exam preparation.&quot;}\" data-sheets-userformat=\"{&quot;2&quot;:448,&quot;9&quot;:0,&quot;10&quot;:1,&quot;11&quot;:4}\" data-sheets-formula=\"=CONCATENATE(&quot;Get Free NCERT Solutions for Class 10 Maths &quot;,R[0]C[1],&quot; &quot;,R[0]C[2],&quot; Class 10 Maths NCERT Solutions are extremely helpful while doing homework.&quot;,R[0]C[3],&quot; Class 10 Maths NCERT Solutions were prepared by Experienced LearnCBSE.in Teachers. Detailed answers of all the questions in &quot;,R[0]C[4],&quot;Maths Class 10 &quot;,R[0]C[2],&quot; &quot;,R[0]C[3],&quot; Provided in NCERT Textbook&quot;,R[0]C[5],R[0]C[5], &quot;You can also download the free PDF of &quot;,R[0]C[1],&quot; &quot;,R[0]C[2],&quot; NCERT Solutions or save the solution images and take the print out to keep it handy for your exam preparation.&quot;)\">Introduction to Trigonometry<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Exercise<\/strong><\/td>\n<td style=\"width: 45.6332%;\">Ex 8.3<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Number of Questions Solved<\/strong><\/td>\n<td style=\"width: 45.6332%;\">7<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 52.4017%;\"><strong>Category<\/strong><\/td>\n<td style=\"width: 45.6332%;\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_For_Class_10_Maths_Chapter_8_Introduction_to_Trigonometry_Ex_83\"><\/span><span style=\"font-size: 12pt;\">NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.3<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ex 8.3 Class 10 Maths Question 1.<br \/>\nEvaluate:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-100486\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/NCERT-Solutions-For-Class-10-Maths-Chapter-8-Introduction-to-Trigonometry-Ex-8.3-Q1.png\" alt=\"NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.3 Q1\" width=\"628\" height=\"46\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-55623\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/NCERT-Solutions-for-Class-10-Maths-Chapter-8-Trigonometry-Exercise-8.3-Free-PDF-Download.png\" alt=\"NCERT Solutions for Class 10 Maths Chapter 8 Trigonometry Exercise 8.3 Free PDF Download\" width=\"400\" height=\"257\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Ex 8.3 Class 10 Maths Question 2.<br \/>\nShow that:<br \/>\n(i) tan 48\u00b0 tan 23\u00b0 tan 42\u00b0 tan 67\u00b0 = 1<br \/>\n(ii) cos 38\u00b0 cos 52\u00b0 \u2013 sin 38\u00b0 sin 52\u00b0 = 0<br \/>\nSolution:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-55624\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/NCERT-Solutions-for-Class-10-Maths-Chapter-8-Trigonometry-Exercise-8.3-Free-PDF-Q2.png\" alt=\"NCERT Solutions for Class 10 Maths Chapter 8 Trigonometry Exercise 8.3 Free PDF Q2\" width=\"363\" height=\"305\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Ex 8.3 Class 10 Maths Question 3.<br \/>\nIf tan 2A = cot (A \u2013 18\u00b0), where 2A is an acute angle, find A&#8217;s value.<br \/>\nSolution:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-55625\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/NCERT-Solutions-for-Class-10-Maths-Chapter-8-Trigonometry-Exercise-8.3-Q3.png\" alt=\"NCERT Solutions for Class 10 Maths Chapter 8 Trigonometry Exercise 8.3 Q3\" width=\"413\" height=\"164\" \/><\/p>\n<p>Ex 8.3 Class 10 Maths Question 4.<br \/>\nIf tan A = cot B, prove that A + B = 90\u00b0.<br \/>\nSolution:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-55626\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/NCERT-Solutions-for-Class-10-Maths-Chapter-8-Trigonometry-Exercise-8.3-PDF-Q4.png\" alt=\"NCERT Solutions for Class 10 Maths Chapter 8 Trigonometry Exercise 8.3 PDF Q4\" width=\"351\" height=\"131\" \/><\/p>\n<p>Ex 8.3 Class 10 Maths Question 5.<br \/>\nIf sec 4A = cosec (A \u2013 20\u00b0), where 4A is an acute angle, find A&#8217;s value.<br \/>\nSolution:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-55627\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/Exercise-8.3-Class-10-NCERT-Solutions-Chapter-8-Trigonometry-PDF-Download-Q5.png\" alt=\"Exercise 8.3 Class 10 NCERT Solutions Chapter 8 Trigonometry PDF Download Q5\" width=\"486\" height=\"134\" \/><\/p>\n<p>Ex 8.3 Class 10 Maths Question 6.<br \/>\nIf A, B and C are interior angles of a triangle ABC, then show that: sin (\\(\\frac { B+C }{ 2 }\\)) = cos \\(\\frac { A }{ 2 }\\)<br \/>\nSolution:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-55628\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/Exercise-8.3-Class-10-NCERT-Solutions-Chapter-8-Trigonometry-PDF-Q6.png\" alt=\"Exercise 8.3 Class 10 NCERT Solutions Chapter 8 Trigonometry PDF Q6\" width=\"698\" height=\"166\" \/><\/p>\n<p>Ex 8.3 Class 10 Maths Question 7.<br \/>\nExpress sin 61\u00b0 + cos 75\u00b0 in terms of trigonometric ratios of angles between 0\u00b0 and 45\u00b0.<br \/>\nSolution:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-55629\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/02\/Trigonometry-Class-10-Chapter-8-Exercise-8.3-NCERT-Solutions-Q7.png\" alt=\"Trigonometry Class 10 Chapter 8 Exercise 8.3 NCERT Solutions Q7\" width=\"529\" height=\"28\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Get Free NCERT Solutions for Class 10 Maths Chapter 8 Ex 8.3 Introduction to Trigonometry Class 10 Maths NCERT Solutions [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Trigonometry 8.3 class 10","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Get NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.3 at infinitylearn.com. 8.3 class 10","custom_permalink":"study-material\/ncert-solutions-for-class-10\/maths\/chapter-8\/introduction-to-trigonometry\/ex-8-3\/"},"categories":[13,54],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions For Class 10 Maths 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