[S. Dy] TEST Unit 8: Trig Equations & Identities

Front

Solve 2 sinθ + 3 = 2

Back

7π/6, 11π/6

Front

Solve on the domain [0, 2π): cos²x + sin x + 1 = 0

Back

3π/2

Front

Solve on the Interval [0, 2π]: tan(x) + 1 = 2

Back

π/4 and 5π/4

Front

Solve on the domain [0, 2π]: 2sin x cos x = √2 cos x

Back

π/2, 3π/2, π/4, 3π/4

Front

Solve on the domain [0, 2π): cos x + 2 = 3 cos x

Back

0

Front

Definition: Trigonometric Identity

Back

An equation that is true for all values of the variable for which both sides are defined.

Front

Definition: Sine Function (sin)

Back

A function that relates the angle of a right triangle to the ratio of the length of the opposite side to the hypotenuse.

Front

Definition: Cosine Function (cos)

Back

A function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the hypotenuse.

Front

Definition: Tangent Function (tan)

Back

A function that relates the angle of a right triangle to the ratio of the length of the opposite side to the adjacent side.

Front

Definition: Period of a Trigonometric Function

Back

The length of one complete cycle of the function.