" 9."x cos^(-1)x

9. int(cos^(-1)x)^(2)dx

int (x+ ( cos^(-1)3x )^(2))/(sqrt(1-9x ^(2)))dx = (1)/(k _(1)) ( sqrt(1-9x ^(2))+ (cos ^(-1) 3x )^(k_(2)))+c, then k _(1) ^(2)+k_(2)^(2)= (where C is an arbitrary constnat. )

int (x+ ( cos^(-1)3x )^(2))/(sqrt(1-9x ^(2)))dx = (1)/(k _(1)) ( sqrt(1-9x ^(2))+ (cos ^(-1) 3x )^(k_(2)))+c, then k _(1) ^(2)+k_(2)^(2)= (where C is an arbitrary constnat. )

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)/9….)=pi/2," where "0 le abs(x) lt 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|

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

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

If int (x +(cos^-1 3x)^2)/sqrt(1 - 9x^2) dx = A sqrt(1 - 9x^2) + B (cos^-1 3x)^3 + c then A, B are respectively