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If f(x) = {{:(-x-pi/2" , " x le - pi...

If `f(x) = {{:(-x-pi/2" , " x le - pi/2),(-cos x" , " -pi/2 lt x le 0",""then"),(x-1", "0lt x le 1),(ln x", "x gt 1):}`

A

f(x) is continuous at `x=-(pi)/(2)`

B

f(x) is not differentiable at x = 0

C

f(x) is differentiable at x = 1

D

f(x) is differentiable at x = – 3/2

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