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The solution for x of the equation int(s...

The solution for x of the equation `int_(sqrt(2))^x(dt)/(tsqrt(t^2-1))=pi/2` is: (1) 2 (2) `pi` (3) `(sqrt(3))/2` (4) `2sqrt(2)`

A

`2sqrt(2)`

B

`-sqrt(2)`

C

`pi`

D

`(sqrt(3))/(2)`

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