If `x in (0,pi/2) ;` then find the minimum value of `(64-15tan x)/(4tan x-tan^(2)x)`

The value of tan(pi+x)tan(pi-x)cot^(2)x is

If x=tan15^(@) , then find the value of x^(2)+(1)/(x^(2)) .

If cos^(2)x+cos^(4)x=1 , then find the value of tan^(2)x+tan^(4)x .

Find the value of tan^(-1)((x-2)/(x-1))+tan^(-1)((x+2)/(x+1))=pi/4

Find the value of tan^(-1)((x-2)/(x-1))+tan^(-1)((x+2)/(x+1))=pi/4

If tan^(-1)(2x)+tan^(-1)(3x)=(pi)/(4) , then find the value of x.

the value of lim_(x rarr1)((tan(pi x))/(4))^((tan(pi x))/(2))

If tan x=(3)/(4),pi

Find the sum of the local maximum and local minimum values of the function f (x) = (tan 3x)/(tan^(3) x) on interval (0 , pi//2) .