Please help precalc Use trigonometric identities to solve each equation within the given domain.
1. –sin^2(x) = cos(2x) from [–π,π]

2. 3 tan(x) = 2 sin(2x) from [0,2π)

3. sec(x) cos(3x) = 0 from [–π /2, π /2]

4. sec(x) cos(3x) = 0 from [–π/2, π/2]

5. "4cos^4(x) – 5cos^2(x) + 1 = 0 from [0,2π)

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x