int_(22.)^((2)/(pi))(sin(1/x))/(x^(2))dx

int_(1//pi)^(2//pi)(sin(1//x)+cos(1//x))/(x^(2))dx=

int_((1)/(pi))^((2)/(pi))(1)/(x^(2))sin.(1)/(x)dx

If A = int_(0)^((pi)/(2))(sin^(3)x)/(1+cos^(2)s)dx and B=int_(0)^((pi)/(2))(cos^(2)x)/(1+sin^(2)x)dx , then (2A)/(B) is equal to

If A = int_(0)^((pi)/(2))(sin^(3)x)/(1+cos^(2)s)dx and B=int_(0)^((pi)/(2))(cos^(2)x)/(1+sin^(2)x)dx , then (2A)/(B) is equal to

int_(0)^(1)(tan^(-1)x)/(x)dx is equals to int_(0)^((pi)/(2))(sin x)/(x)dx(b)int_(0)^((pi)/(2))(x)/(sin x)dx(1)/(2)int_(0)^((pi)/(2))(sin x)/(x)dx(d)(1)/(2)int_(0)^((pi)/(2))(x)/(sin x)dx

int_(0)^( pi)(x)/((1+sin^(2)x))dx

int_(-pi)^( pi)(sin^(2)x)/(1+a^(x))dx

If A=int_(0)^( pi)(cos x)/((x+2)^(2))dx, then int_(0)^( pi/2)(sin2x)/(x+1)dx is equal to

int_(-pi)^(pi)(2x(1+sin x))/(1+cos^(2)x)dx