`int 1/((1+x^2)sqrt(1-x^2))`dx is equal to

int(1)/((1+sqrtx)sqrt(x-x^(2)))dx is equal to

int(x^(2)+1)/(xsqrt(x^(2)+2x-1)sqrt(1-x^(2)-x))dx is equal to

Column I, a) int(e^(2x)-1)/(e^(2x)+1)dx is equal to b) int1/((e^x+e^(-x))^2)dx is equal to c) int(e^(-x))/(1+e^x)dx is equal to d) int1/(sqrt(1-e^(2x)))dx is equal to COLUMN II p) x-log[1+sqrt(1-e^(2x)]+c q) log(e^x+1)-x-e^(-x)+c r) log(e^(2x)+1)-x+c s) -1/(2(e^(2x)+1))+c

The value of int (dx)/((1+sqrtx)(sqrt(x-x^2))) is equal to

int sqrt(e^(x)-1)dx is equal to

int_(1)^(2)x^(2)dx is equal to

int (x^2 -1 )/ (x^3 sqrt(2x^4 - 2x^2 +1))dx is equal to

The value of int_(0)^(1)xcos^(-1)((1-x^2)/(1+x^2)) dx (x>0) is equal to ___________.

int x.2^(ln(x^(2)+1))dx is equal to