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underset(x to π/2)"Lt" ((1+cos x)/(1-cos...

`underset(x to π/2)"Lt" ((1+cos x)/(1-cos x))^(1//cos x)=`

A

e

B

`e^2`

C

e^3`

D

`e^4`

Text Solution

Verified by Experts

The correct Answer is:
B
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