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If f(x)=Sin^(-1)x+Cos^(-1)x, then(pi)/2 ...

If `f(x)=Sin^(-1)x+Cos^(-1)x`, then`(pi)/2` is the value of

A

`f(-1/2)`

B

`f(k^(2)-2k+3),k in R`

C

`f(1/(1+k^(2))),k in R`

D

`f(-2)`

Text Solution

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The correct Answer is:
A, C, D
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