Trigonometry - Solving Trig Equations

x = no solution

Solve 2 cos x - 5 = 3 cos x - 2 where 0 ≤ x < 2π

x = π/6, 5π/6

Solve 2sinx - 1 = 0 where 0 ≤ x < 2π

x = π/2, 7π/6, 11π/6

Solve 2sin²x - sin x - 1 = 0 where 0 ≤ x < 2π

x = π/2, 3π/2

Solve 2sin²x-2=0 where 0≤ x < 2π

x= π/3, 2π/3, 4π/3, 5π/3

Solve 3tan²x - 9 = 0 where 0 ≤ x < 2π

x = π/2,3π/2,π/4,5π/4

Solve cosxtanx-cosx=0 where 0 ≤ x < 2π

x=0, π/3, 5π/3, π

Solve sinx - 2sinxcosx = 0 where 0 ≤ x < 2π

x = 0, π/2, π

Solve sin²x - sinx = 0 where 0≤ x <2π