Solving Trig Equations Review

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Solve -6sinx-3 = 9 where 0 ≤ x < 2π

x = no solution

Solve 2 cos x - 5 = 3 cos x - 2 where 0 ≤ x < 360

x = π/6, 5π/6

Solve 2sinx - 1 = 0 where 0 ≤ x < 360

x = π/2, 7π/6, 11π/6

Solve 2sin²x - sin x - 1 = 0 where 0 ≤ x < 360 (hint: factor)

x = π/2, 3π/2

Solve 2sin²x-2=0 where 0≤ x < 360

x = π/2, 3π/2

Solve 3cosx=0 where 0 ≤ x < 2π

x = π/3, 2π/3, 4π/3, 5π/3

Solve 3cot²x - 1 = 0 where 0 ≤ x < 360

x=π/6, 5π/6, 7π/6, 11π/6

Solve 3sec²x - 4 = 0 where 0 ≤ x < 360

x= pi/3, 2pi/3, 4pi/3, 5pi/3

Solve 3tan²x - 9 = 0 where 0 ≤ x < 2pi

x= π/6, 11π/6

Solve cos x = √3/2 where 0 ≤ x < 2π

x = π/2, 3π/2, π/4, 5π/4

Solve cosxtanx-cosx=0 where 0 ≤ x < 360

x=3π/4, 7π/4

Solve cot x = -1 where 0 ≤ x < 360

x=π/6, 5π/6, 3π/2

Solve csc²x - cscx - 2 = 0 where 0 ≤ x < 360

x=0, π/3, π, 5π/3

Solve sinx - 2sinxcosx = 0 where 0 ≤ x < 360 (hint: factor)

x = 0, π/2, π

Solve sin²x - sinx = 0 where 0≤ x <360 (Hint: factor)

x = π/4, 5π/4

Solve tan x = 1 where 0 ≤ x < 2π


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