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Question 16 (OR 2nd question) - CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic - Solutions of Sample Papers for Class 10 Boards

Last updated at Dec. 16, 2024 by Teachoo

If 15 cot A = 8, then find value of cosec A.

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Question 16 (OR 2nd question) If 15 cot A = 8, then find value of cosec A. 15 cot A = 8 cot A = 8/15 We know that 1 + cot2 A = cosec2 A 1 + (8/15)^2 = cosec2 A 1 + 64/225 = cosec2 A (225 + 64)/225 = cosec2 A 289/225 = cosec2 A cosec2 A = 289/225 cosec2 A = (17^2/15^2 ) cosec2 A = (17/15)^2 cosec A = 𝟏𝟕/𝟏𝟓
  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

    3. CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo