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If f(x) = (1+sin x - cos x)/(1- sin x -...

If f(x) ` = (1+sin x - cos x)/(1- sin x - cos x ) , x != 0` is continuous at x = 0 , then : f(0) =

A

1

B

0

C

`-1`

D

2

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The correct Answer is:
a,b,c,d
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