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Precalculus

Course: Precalculus > Unit 2

Lesson 7: Sinusoidal equations

Solving sinusoidal equations of the form sin(x)=d
Cosine equation algebraic solution set
Cosine equation solution set in an interval
Sine equation algebraic solution set
Solving cos(θ)=1 and cos(θ)=-1
Solve sinusoidal equations (basic)
Solve sinusoidal equations

Solve sinusoidal equations

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Select one or more expressions that together represent all solutions to the equation. Your answer should be in degrees.
Assume n is any integer.

8, cosine, left parenthesis, 12, x, right parenthesis, plus, 4, equals, minus, 4

(Choice A)
minus, 90, degrees, plus, n, dot, 360, degrees
(Choice B)
minus, 7, point, 5, degrees, plus, n, dot, 30, degrees
(Choice C)
15, degrees, plus, n, dot, 30, degrees
(Choice D)
15, degrees, plus, n, dot, 15, degrees
(Choice E)
90, degrees, plus, n, dot, 180, degrees
(Choice F)
180, degrees, plus, n, dot, 360, degrees

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Precalculus

Course: Precalculus > Unit 2

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