Use trigonometric identities to solve each equation within the given domain. a) –sin^2(x) = cos(2x) from [–π, π]
b) 3 tan(x) = 2 sin(2x) from [0, 2π)
c) sec(x) cos(3x) = 0 from [–pi/2,pi/2]
d) 1 – cos(x) = 2 – 2 sin^2(x) from (–π, π)
e) 4cos^4(x) – 5cos^2(x) + 1 = 0 from [0, 2π)