Show that
`tan 3x tan 2x tan x = tan 3x - tan 2x - tan x`

Show that, tan3xtan2xtanx=tan3x-tan2x-tanx .

Prove that, tan3A.tan2A.tanA=tan3A-tan2A-tanA

If y = tan x tan 2x tan 3x, (sin 12x != 0) then dy / dx has the value equal to

Prove that f(x) = [tan x] + sqrt(tan x - [tan x]) . (where [.] denotes greatest integer function) is continuous in [0, (pi)/(2)) .

If the sum of all value of x satisfying the system of equations tan x + tan y+ tan x* tan y=5 sin (x +y)=4 cos x * cos y is (k pi )/2 , where x in (0, (pi)/(2)) then find the values of k .

The value of int (tan x )/(tan ^(2) x + tan x+1)dx =x -(2)/(sqrtA) tan ^(-1) ((2 tan x+1)/(sqrtA))+C Then the value of A is:

(sin x + sin 3x )/( cos x + cos 3x )= tan 2x

Prove that tan4x=(4tanx(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

Prove that tan4x=(4tanx(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

(d)/(dx) tan^(-1) (sec x - tan x) - Find