Ex 8.3, 1 - Evaluate (i) sin 18 / cos 72 (ii) tan 26/cot 64 - Trignometric ratios of complementry angles

 

 

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Transcript

Question 1 Evaluate : (i) sin 18 /cos 72 sin 18 /cos 72 = sin 18 /cos (90 18 ) = sin 18 /(sin 18 ) = 1

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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 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.