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A solution of equation tan ^(-1) ""(x-1...

A solution of equation `tan ^(-1) ""(x-1)/(x-2) + tan ^(-1) ""(x+1)/(x+2)=(pi)/(4)`

A

(a) `pm(1)/(sqrt(2))`

B

(b) `pmsqrt(2)`

C

(c) `pm(1)/(2)`

D

(d) `pm2`

Text Solution

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The correct Answer is:
A
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