Ques1. (a) if sinA :cosA ::8:15, find sinA and cosA.
(b) if sec A+ tanA= m,prove that: sinA =squa. of m-1
please solve these questions
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
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