1.

If 0ltxlt1 then sqrt(1+x^(2))[{xcos(cot^(-1)x)+sin(cot^(-1)x)}^(2)-1]^(1/2) is equal ot

Answer»

`X/(SQRT(1+x^(2)))`
`x`
`xsqrt(1+x^(2))`
`sqrt(1+x^(2))`

ANSWER :C


Discussion

No Comment Found