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If alpha is not an integral multiple of...

If `alpha` is not an integral multiple of `pi` , then : `lim_(x to alpha) ((sin x)/(sin alpha))^(1/(x-alpha) )= `

A

`e^(cot alpha)`

B

`e^(tan alpha)`

C

`e^(sin alpha)`

D

`e^(cos alpha)`

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The correct Answer is:
a
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