1.

If ∫excos(x)dx=F(x)+c, where c is an arbitrary constant, then F(x)= (a) ex(sinx−cosx) (b) ex(sinx+cosx) (c) ex2(sinx−cosx) (d) ex2(sinx+cosx)

Answer» If excos(x)dx=F(x)+c, where c is an arbitrary constant, then F(x)=

(a) ex(sinxcosx)
(b) ex(sinx+cosx)
(c) ex2(sinxcosx)
(d) ex2(sinx+cosx)


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