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CBSE Class 10 Answered

prove that cos30+sin60/1+cos60+sin30=root3/2 2) find the acute angle when cos-sin/cos+sin=1-root3+1+root3/1+root3-1-root3
Asked by | 18 Aug, 2012, 07:01: AM
answered-by-expert Expert Answer
We would request you to please ask one question at a time. The answer to your first question is as follows:
 
cos30+sin60/1+cos60+sin30
= (sqrt 3/ 2 + sqrt 3/2) / (1 + 1/2 + 1/2)
= (2 sqrt 3/ 2) / 2
= sqrt 3/ 2
Answered by | 19 Aug, 2012, 11:28: PM

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