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If f(x)={(sin(cosx)-cosx)/((pi-2x)^2)\ \...

If `f(x)={(sin(cosx)-cosx)/((pi-2x)^2)\ \ \ ,\ \ \ x!=pi/2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \k\ \ \ \ ,\x=pi/2` is continuous at `x=pi/2` , then `k` is equal to (a) 0 (b) `1/2` (c) 1 (d) -1

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