Solving Trig Equations
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x = no solution
Solve 2cosx - 5 = 3cosx - 2 where 0 ≤ x < 360
x = 30, 150
Solve 2sinx - 1 = 0 where 0 ≤ x < 360
x = 90, 210, 330
Solve 2sin²x - sin x - 1 = 0 where 0 ≤ x < 360 (hint: factor)
x = 90, 270
Solve 2sin²x-2=0 where 0 ≤ x < 360
x = π/2, 3π/2
Solve 3cosx = 0 where 0 ≤ x < 2π
x= π/6, 11π/6
Solve cosx = √3/2 where 0 ≤ x < 2π
x = 0, 90, 180
Solve sin²x - sinx = 0 where 0 ≤ x <360 (Hint: factor)