Trigonometry - Solving Trig Equations

x = no solution

Solve 2cos x =3

x = π/6, 5π/6

Solve 2sinx - 1 = 0

x = 0, 2π/3, 4π/3

Solve 2sinxcosx + sinx = 0

x = π/2, 7π/6, 11π/6

Solve 2sin²x - sin x - 1 = 0

x = π/2, 3π/2

Solve 2sin²x-2=0

x = π/6, 5π/6, 7π/6, 11π/6

Solve 3sec²x - 4 = 0

x= π/3, 2π/3, 4π/3, 5π/3

Solve 3tan²x - 9 = 0

x = π/4, 3π/4, 5π/4, 7π/4

Solve 4sin²x = 2

x = π/6, 11π/6

Solve 5cosx - √3 = 3cosx

x = 2π/3, 4π/3

Solve cos(2x) + 5cosx + 3 = 0

x = 0, π

Solve cos(2x)-1=0

x = 5π/12, 7π/12, 17π/12, 19π/12

Solve cos2x + √3 = -cos2x

x = π/6, π/2, 5π/6, 3π/2

Solve cosx - 2sinxcosx = 0

x = π/2, 3π/2, π/4, 5π/4

Solve cosxtanx-cosx=0

x = 0, π/2, π

Solve cos²x = 1 - sinx

x = 3π/4, 7π/4

Solve cot²x = -2cotx - 1

x = π/6, 5π/6, 3π/2

Solve csc²x - cscx - 2 = 0

x=0, π/3, π, 5π/3

Solve sinx - 2sinxcosx = 0

x = 3π/2

Solve sin²x - 2sinx=3

x = π

Solve sin²x - 5cosx = 5

x = 0, π/2, π

Solve sin²x - sinx = 0

x = π/3, 2π/3, 4π/3, 5π/3

Solve tan²x - 3 = 0