Let `S={theta in[-2 pi,2 pi]:2cos^(2)theta+3sin theta=0}` ,then the sum of elements of S is approximately equal to

Let S = { theta in [-2pi,2pi]:2 cos^(2) theta + 3 sin theta = 0} , then the sum of the equations elements of S is .

let theta in[-2 pi,2 pi] and 2cos^(2)theta+3sin theta=0 then sum of all solution is

Find theta in [pi/2, 3pi/2] satisfying 2cos^(2)theta +sin theta le 2 .

Let A={theta in (-pi /2,pi):(3+2i sin theta )/(1-2 isin theta ) is purely imaginary } Then the sum of the elements in A is

int_(-(pi)/(2))^((pi)/(2))cos^(3)theta(1+sin theta)^(2)d theta is equal to

If 0