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underset(x to (pi)/(2))(lim)(a^(cot x) -...

`underset(x to (pi)/(2))(lim)(a^(cot x) -a^(cosx))/(cot x- cot x )` is equalt o

A

In `(pi/2)`

B

In 2

C

In a

D

a

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The correct Answer is:
c
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