let f(x)=e^(cos^(-1)sin(x + pi/3)) then ...

let `f(x)=e^(cos^(-1)sin(x + pi/3))` then `f((8pi)/9) and f((-7pi)/4)`

A

` f((8pi)/(9))= e^(5pi//18) `

B

` f((8pi)/(9))= e^(13pi//18) `

C

` f(-(7pi)/(4))= e^(13pi//12) `

D

` f(-(7pi)/(4))= e^(11pi//12) `

Verified by Experts

The correct Answer is:

C

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