PreCal Unit 9: Solving Trig Equations

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x = 30°, 150°

Solve 2sinx - 1 = 0 where 0 ≤ x < 360

x = 0

Solve 2 cos x = 3 cos x - 1 where 0 ≤ x < 360

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/3, 2π/3, 4π/3, 5π/3

Solve 3tan²x - 9 = 0 where 0 ≤ x < 2π

x= π/6, 11π/6

Solve cos x = √3/2 where 0 ≤ x < 2π

x=135°, 315°

Solve sinx = - cosx where 0 ≤ x < 360


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