Over `[-pi,pi]` the solution of `2 sin^2 (x+pi/4)+sqrt3 cos 2x ge 0` is

In [-pi, pi] , solution of inequality………. cos 2x+5cos x +3 ge 0 is

In [-pi, pi] , solution of inequality………. cos 2x+5cos x +3 ge 0 is

The number of real solution of the equation sqrt(1 + cos 2x) = sqrt2 sin^(-1) (sin x), -pi le x le pi , is

The number of real solution of the equation sqrt(1 + cos 2x) = sqrt2 sin^(-1) (sin x), -pi le x le pi , is

The number of real solution of the equation sqrt(1 + cos 2x) = sqrt2 sin^(-1) (sin x), -pi le x le pi , is

The number of real solution of the equation sqrt(1 + cos 2x) = sqrt2 sin^(-1) (sin x), -pi le x le pi , is

The number of real solution of the equation sqrt(1 + cos 2x) = sqrt2 sin^(-1) (sin x), -pi le x le pi , is

The number of values of x in [0, 2 pi] satisfying the equation |cos x - sin x | ge sqrt(2) , is