(1+tan^(3)x)^(2)

int(1+tan^(3)x)sec^(2)xdx=

The solution of the inequality (tan^(-1)x)^(2)-3tan^(-1)x+2>=0 is

The solution of the inequality (tan^(-1)x)^(2)-3tan^(-1)x+2>=0 is- a.(-oo,tan1]uu[tan2,oo)b*(-oo,tan1] c.(-oo,-tan1]uu[tan2,oo)d.[-1,1]-(-(sqrt(2))/(2),(sqrt(2))/(2))

int_(0)^(1) ((tan^(-1)x)^(3))/(1+x^(2))dx=

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

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

prove that int(x^(2))/((x^(2)+1)(x^(2)+4))dx=-(1)/(3)tan^(-1)x+(2)/(3)tan^(-1)((x)/(2))+

Show that tan 3 x=(3 tan x-tan ^(3) x)/(1-3 tan ^(2) x)