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alpha gt 0 के लिए माना underset(x to p...

`alpha gt 0` के लिए माना `underset(x to pi)Lim (tan 2x)/(x -pi)=underset(x to 0)Lim ((1-cos 2alpha x)^(2))/(x^(4))` तो `alpha` का मान है

A

`2^(-(1)/4)`

B

`2^(-1/2)`

C

`2^(-1)`

D

1

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
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