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underset(xto(pi)/(2))lim(cotx-cosx)/((pi...

`underset(xto(pi)/(2))lim(cotx-cosx)/((pi-2x)^(3))` equals

A

`1/8`

B

`1/4`

C

`1/24`

D

`1/16`

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The correct Answer is:
D
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