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Let f(x) = sin^(-1) x + cos^(-1) x ". T...

Let `f(x) = sin^(-1) x + cos^(-1) x ". Then " pi/2 ` is equal to

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
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