" 6."tan^(-1)(-1)

Prove that : 2 tan^(-1) (1/3) +tan^(-1) (1/6) = tan^(-1) (22/21)

The mean of numbers a,b,8,5,10 is 6 and their variance 6.80 ,then tan^(-1)((1)/(a))+tan^(-1)((1)/(b))=

If int_(0)^(1)(x+4)/(x^(2)+5)dx = a log ((6)/(5))+b tan^(-1)((1)/(sqrt(5))) , then (a, b)-=

The value of tan^(-1)tan(-6) is

The value of tan^(-1)tan(-6) is

Evaluate the following : tan^(-1)(tan(-6))

int(x^(3)-x)/(1+x^(6))dx is equal to a) 1/6"log"(x^(4)-x^(2)+1)/((1+x^(2))^(2))+C b) 1/6"tan"^(-1)((x^(2)+1)^(2))/(2)+C c) "log"(x^(4)-x^(2)+1)/((1+x^(2))^(2))+C d) "tan"^(-1)(x^(2)+1)^(2)/(2)+C

The value of tan^(-1)((1)/(sqrt(2)))-tan^(-1)((sqrt(5-2sqrt(6)))/(1+sqrt(6))) is equal to

If tan^(-1)(1+x)+tan^(-1)(1-x)=(pi)/(6), then prove that x^(2)=2sqrt(3).

tan^(-1)((1)/(1+2))+tan^(-1)((1)/(1+6))+tan^(-1)(k)=tan^(-1)4 -(pi)/(4) then k is