9*x cos^(-1)x

The number of values of x for which sin^(-1)(x^2-(x^4)/3+(x^6)/9)+cos^(-1)(x^4-(x^8)/3+(x^(12))/9ddot)=pi/2, where 0 lt=|x| < sqrt(3,) is__________

The number of values of x for which sin^(-1)(x^2-(x^4)/3+(x^6)/9)+cos^(-1)(x^4-(x^8)/3+(x^(12))/9ddot)=pi/2, where 0lt=|x|

The number of values of x for which sin^(-1)(x^2-(x^4)/3+(x^6)/9)+cos^(-1)(x^4-(x^8)/3+(x^(12))/9ddot)=pi/2, where 0<|x|

The number of values of x for which sin^(-1)(x^2-(x^4)/3+(x^6)/9)+cos^(-1)(x^4-(x^8)/3+(x^(12))/9ddot)=pi/2, where 0lt=|x|

Differentiate the following w.r.t. x: cos^(-1) (frac {1- 9^x }{1 + 9^x})

Solve sin (cos ^(-1) x) = (1)/(9)

int (x+(cos^(-1)3x)^(2))/(sqrt(1-9x^(2)))dx =