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CBSE Class 11-science Answered

please solve these questions
Asked by www1028 | 31 Aug, 2009, 06:30: PM
answered-by-expert Expert Answer

a) if sinA :cosA ::8:15, find sinA and cosA.

sinA /cosA =8/15,
tan A =8/15 So Oposite side/Adjacent side =8/15 i.e Oposite side =8k Adjacent side =15 k and hypotenuse =17 k for some integer k
So Sin A = 8/17 cos A = 15/17

 Please do not post  multiple  questions in a query.  post each question individually and let us know where you are getting stuck so that we would be able to explain things better.

Answered by | 01 Sep, 2009, 11:07: AM
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