Trigonometry - Solving Trig Equations
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x = 90, 270
Solve cosx=0 where 0 ≤ x < 360
x = no solution
Solve cos x = 5 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= 30, 330
Solve cos x = √3/2 where 0 ≤ x < 360
x = 90,270,45,225
Solve cosxtanx-cosx=0 where 0 ≤ x < 360
x=0, 60, 180, 300, 360
Solve sinx(1 - 2cosx) = 0 where 0 ≤ x < 360 (hint: factor)
x = 0, 90, 180
Solve sin²x - sinx = 0 where 0≤ x <360 (Hint: factor)
