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Q)

(cosx+isinx)(cosy+isiny)(cotu+i)(1+itanv)=?

(A) =(sinv.cosu)(cos(x+yuv)+isin(x+yuv)

(B) =(sinu.cosv)(cos(x+yuv)+isin(x+yuv)

(C) =(sinu.cosv)(cos(x+yuv)isin(x+yuv)

(D) =(sinv.cosu)(cos(x+yuv)isin(x+yuv)

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