If `sintheta=x` then the value of `costheta` is
`(a) sqrt(1-x^2)`
`(b) sqrt(x^2-1)`
`(c) sqrt(1+x^2)`

The value of sin^(-1)[x sqrt(1-x)-sqrt(x)sqrt(1-x^(2))] is equal to

a+1=2sqrt(a)x then (sqrt(x^(2)-1))/(x-sqrt(x^(2)-1))=

Simplify : ( sqrt( 1 + x^2 ) + sqrt( 1 - x^2 ) ) /( sqrt( 1 + x^2 ) - sqrt( 1 - x^2 ) )

If 2x = sqrt(a) - (1)/(sqrt(a)) , then the value of (sqrt(x^(2) + 1))/(x + sqrt(x^(2) +1)) is

If x gt2 then what is the value of sqrt(x+2sqrt(x-1))+sqrt(x-2sqrtx-1) ?

The value of int_(-1)^(1) {sqrt(1+x+x^(2))-sqrt(1-x+x^(2))}dx , is

If mean value theorem holds good for the function f(x)=(x-1)/(x) on the interval [1,3] then the value of 'c' is 2 (b) (1)/(sqrt(3))( c) (2)/(sqrt(3))(d)sqrt(3)

int(sqrt(1-x^(2))+sqrt(1+x^(2)))/(sqrt(1-x^(2))sqrt(1+x^(2)))dx=