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यदि 0 lt x lt 1 है, तो sqrt(1+x^(2)) [{x...

यदि `0 lt x lt 1` है, तो `sqrt(1+x^(2)) [{x cos(cot^(-1)x) + sin(cot^(-1)x)}^(2)-1]^(1//2)`
(i) `x/sqrt(1+x^(2))` (ii) `x` (iii) `xsqrt(1+x^(2))` (iv) `sqrt(1+x^(2))`

A

`x/sqrt(1+x^(2))`

B

`x`

C

`xsqrt(1+x^(2))`

D

`sqrt(1+x^(2))`

लिखित उत्तर

Verified by Experts

The correct Answer is:
C
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