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Let f(x)=(sqrt(x-2sqrt(x-1)))/(sqrt(x-1)...

Let `f(x)=(sqrt(x-2sqrt(x-1)))/(sqrt(x-1)-1).x` then

A

domain of f(x) is `x ge 1`

B

domain of f(x) is `[1,infty)-{2}`

C

f'(10)=1

D

`f'(3/2)=-1`

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B, C, D
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