Trigonometry - Solving Trig Equations
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 = π/2, 3π/2
Solve 3cosx=0 where 0 ≤ x < 2π
x = 0, 180
Solve cos(2x)-1=0 where 0 ≤ x < 360
x = 90,270,45,225
Solve cosxtanx-cosx=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 = 120, 300, 150, 330
Solve sin 2x = -√3/2 where 0 ≤ x < 360
x = 0, 90, 180
Solve sin²x - sinx = 0 where 0≤ x <360 (Hint: factor)
x = no solution
Solve 2 cos x - 5 = 3 cos x - 2 where 0 ≤ x < 360
x = 90, 270
Solve 2sin²x-2=0 where 0≤ x < 360
x=0, 60, 180, 300, 360
Solve sinx - 2sinxcosx = 0 where 0 ≤ x < 360 (hint: factor)