10." tan "2x

Show that tan" "3x" "tan" "2x" "tan" "x" "=" "tan 3x - tan 2x - tan x .

If log_(10)tan 19^(@) + log_(10) tan 21^(@) + log_(10) tan 37^(@) + log_(10) tan 45^(@) + log_(10) tan 69^(@) + log_(10) tan 71^(@) + log_(10) tan 53^(@) = log_(10) (x)/(2) , then x = ______.

x = npi - tan^-1 3 is a solution of the equation 12 tan 2x + sqrt10/cosx + 1 = 0 if

the period of 10tan2x+153sec4x is

The equation 3tan^(4)x-10tan^(2)x+3=0 has the solution set as

The equation 3tan^(4)x-10tan^(2)x+3=0 has the solution set as

The equation 3tan^(4)x-10tan^(2)x+3=0 has the solution set as

The number of solutions of the equation 3^(2sec^(2)x)+1=10.3^(tan^(2)x) in the interval [0,2pi] is