" (iii) "tan^(-1)((x)/(1+x^(2)))

int(m tan^(-1)x)/(1+x^(2))dx

If x gt 1 then 2tan^(-1)x - tan^(-1) ((2x)/(1-x^(2))) =______.

int (sin (2tan^(-1)x))/((1+x^(2)))dx.

Solve tan^(-1)x +"tan"^(-1) (2x)/(1-x^(2))=(pi)/(2) .

[ If xgt0 then which of the following is true 1) tan^(-1)xgt(x)/(1+x^(2)), 2) tan^(-1)x=(x)/(1+x^(2)) 3) tan^(-1)xlt(x)/(1+x^(2)), 4) tan^(-1)x!=(x)/(1+x^(2))]

int (e^(3 tan^(-1)x)/(1+x^(2))) dx

If x in (-1,1) prove that 2Tan^(-1)x="Tan"^(-1)(2x)/(1-x^(2))

int_(0)^(1)(tan^(-1)x)/((1+x^(2)))dx