{"id":3882,"date":"2023-12-12T07:24:50","date_gmt":"2023-12-12T01:54:50","guid":{"rendered":"https:\/\/wordpress-505192-1602719.cloudwaysapps.com\/?p=3882"},"modified":"2023-12-13T17:47:30","modified_gmt":"2023-12-13T12:17:30","slug":"samacheer-kalvi-11th-maths-solutions-chapter-3-ex-3-8","status":"publish","type":"post","link":"https:\/\/samacheerkalviguru.com\/samacheer-kalvi-11th-maths-solutions-chapter-3-ex-3-8\/","title":{"rendered":"Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.8"},"content":{"rendered":"

You can Download Samacheer Kalvi 11th Maths Book Solutions<\/a> Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations.<\/p>\n

Tamilnadu Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.8<\/h2>\n

Question 1.
\nFind the principal solution and general solutions of the following:
\n\"Samacheer
\nSolution:
\n\"Samacheer
\n\"Samacheer<\/p>\n

Question 2.
\nSolve the following equations for which solutions lies in the interval 0\u00b0 < \u03b8 < 360\u00b0
\n(i) sin4<\/sup> = sin2<\/sup>x
\n(ii) 2 cos2<\/sup> x + 1 = – 3cos x
\n(iii) 2 sin2<\/sup> x + 1 = 3 sin x
\n(iv) cos 2x = 1 – 3 sin x – 3 sin x
\nSolution:
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer<\/p>\n

\"Samacheer<\/p>\n

Question 3.
\nSolve the following equations:
\n(i) sin 5x – sin x = cos 3x
\n(ii) 2 cos2<\/sup> \u03b8 + 3 sin \u03b8 – 3 = 0
\n(iii) cos \u03b8 + cos 3\u03b8 = 2 cos 2\u03b8
\n(iv) sin \u03b8 + sin 3\u03b8 + sin 5\u03b8 = 0
\n(v) sin 2\u03b8 – cos 2\u03b8 – sin \u03b8 + cos \u03b8 = 0
\n(vi) sin \u03b8 + cos \u03b8 = \\(\\sqrt{3}\\)
\n(vii) sin \u03b8 + \\(\\sqrt{3}\\) cos \u03b8 = 1
\n(viii) cot \u03b8 + cosec \u03b8 = \\(\\sqrt{3}\\)
\n\"Samacheer
\nSolution:
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer
\n\"Samacheer<\/p>\n

Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.8 Additional Questions<\/h3>\n

Question 1.
\nSolve: 2 cos2<\/sup> \u03b8 + 3 sin \u03b8 = 0
\nSolution:
\n2 cos2<\/sup> \u03b8 + 3 sin \u03b8 = 0
\n\u21d2 2 (1 – sin2<\/sup> \u03b8) + 3 sin \u03b8 = 0
\n\u21d2 2 – 2 sin2<\/sup> \u03b8 + 3 sin \u03b8 = 0
\n\u21d2 -2 sin2<\/sup> \u03b8 + 3 sin \u03b8 + 2 = 0
\n\u21d2 2 sin2<\/sup> \u03b8 – 3 sin \u03b8 – 2 = 0
\n\u21d2 (2 sin \u03b8 + 1)(sin \u03b8 – 2) = 0
\n\"Samacheer<\/p>\n

Question 2.
\nSolve: 2 tan \u03b8 – cot \u03b8 = -1
\nSolution:
\n2 tan \u03b8 – cot \u03b8 = -1
\n\"Samacheer<\/p>\n

Question 3.
\nSolve: tan2<\/sup> \u03b8 + (1 – \\(\\sqrt{3}\\)) = 0
\nSolution:
\n\"Samacheer
\n\"Samacheer<\/p>\n

Question 4.
\nSolve: \\(\\sqrt{3}\\) x + cos x = 2
\nSolution:
\n\"Samacheer<\/p>\n

\"Samacheer<\/p>\n

Question 5.
\n\"Samacheer
\nSolution:
\n\"Samacheer<\/p>\n","protected":false},"excerpt":{"rendered":"

You can Download Samacheer Kalvi 11th Maths Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations. Tamilnadu Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.8 Question 1. Find the principal solution and general solutions of the following: Solution: Question 2. Solve …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":""},"categories":[7],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/posts\/3882"}],"collection":[{"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/comments?post=3882"}],"version-history":[{"count":1,"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/posts\/3882\/revisions"}],"predecessor-version":[{"id":60121,"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/posts\/3882\/revisions\/60121"}],"wp:attachment":[{"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/media?parent=3882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/categories?post=3882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/samacheerkalviguru.com\/wp-json\/wp\/v2\/tags?post=3882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}