Find $$\sin$$(90° - $$\theta)$$
We know that ,
Sin(A-B)=Sin(A)Cos(B)-Cos(A)Sin(B)
so,
$$Sin(90-\theta)$$
$$=Sin90Cos\theta-Cos90Sin\theta$$
$$=1×Cos\theta-0$$
(Sin90=1 and Cos90=0)
$$=Cos\theta.$$
D is correct choice.
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