Please help with this equation (I'm math illiterate!) Thanks in advance.
Solve 2sinx^2 - 7sinx= -3 for x, where 0< x < 360 degrees.
This is a quadratic in sin(x), so put y=sin(x), then we have:
2 y^2 -7 y +3 =0,
use the quadratic formula to find that y=1/2 or y= 3.
Now there are no angles in the given range for which sin(x)=3 so we need
only examine y = sin(x) =1/2, which has solutions x=30, and x= 150 degrees
in the given range.
RonL