Number of solutions of the simultaneous equations `|x| + |y|=3` and `sin (pi x^2/2)=1` is

The number of solutions of the equation sin x . Sin 2x. Sin 3x=1 in [0,2pi] is

The number of solutions of the equation sin x . Sin 2x. Sin 3x=1 in [0,2pi] is

The number of solutions of the equation sin x . Sin 2x. Sin 3x=1 in [0,2pi] is

Check whether (5,-1) is a solution of the simultaneous equations x-2y=7 and 2x+3y=7.

The number of solutions of the equation sinx. Sin2x. Sin3x = 1 in [0, 2pi]

The number of solution pairs (x , y) of the simultaneous equations log_(1//3) (x + y) + "log"_(3) (x-y) = 2 and 2^(y^(2)) = 512^(x + 1) is

The number of common roots of simultaneous equation cos 2 x + sin 2 x = cot x and 2 cos ^(2) x + cos ^(2) 2 x = 1 x in |-pi, pi|

The number of solutions of equations |tan2x|=sin x" in"[0,pi]

The number of solutions of equations |tan2x|=sin x" in"[0,pi]