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If $α, β$ are complementary angles, $\sin α = \frac{3}{5}$ ; then $\sin α \cos β - \cos α \sin β =$

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detailed solution

Correct option is B

α+β=π2 ∴sin(α−β)=sin(2α−π2) =−cos2α =−(1−2sin2α) =2(925)−1 =−725

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If α,β are complementary angles,sinα=35 ; then sinαcosβ−cosαsinβ=

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If $α, β$ are complementary angles, $\sin α = \frac{3}{5}$ ; then $\sin α \cos β - \cos α \sin β =$