The number of solutions of the equation `tanx.tan4x=1 for 0ltxltpi` is (A) 2 (B) 4 (C) 6 (D) none of these

The number of solutions of equation tan^(-1)2x+tan^(-1)3x=pi/4 is (a) 2 (b) 3 (c) 1 (d) none of these

The number of solutions of the equation cot(sin x+3)=1, in [0,3pi] is 0 (b) 1 (c) 4 (d) 2

The number of solutions of the equation tan^(-1)(1+x)+tan^(-1)(1-x)=pi/2 is 2 (b) 3 (c) 1 (d) 0

The number of real solutions of the equation -x^2+x-1=sin^4x is (A) 1 (B) 2 (C) 0 (D) 4

Find the number of solutions of the equation 3tanx+x^3=2 when x in (0,pi/4)

The general solution of the equation tanx+ tan2x + tanx.tan2x= 1 is

Let f(x)= max{tanx, cotx} . Then number of roots of the equation f(x)= 1/sqrt(3) in (0,2pi) is (A) 2 (B) 4 (C) 0 (D) infinite

The number of real solutions of the equation |x^(2)|-3|x|+2=0 is (a) 3 (b) 4 (c) 1 (d) 3.

The number of solution the equation cos(theta).cos(pitheta)=1 has 0 (b) 2 (c) 4 (d) 2

The number of solution the equation cos(theta)cos(pitheta)=1 has 0 (b) 2 (c) 4 (d) 2