Trigonometry

Front

What is the value of sin 45°?

Back

sin 45° = √2/2

Front

What is the vertical shift of the function y = 4 cos(x) - 2?

Back

The vertical shift is down 2.

Front

If G is the centroid of triangle ABC and BE = 18, what is the length of BG?

Back

BG = 12.

Front

Solve for x: If 2x + 10 = 74.9, what is x?

Back

x = 54.1.

Front

What are the coordinates of 60° on the unit circle?

Back

(1/2, √3/2)

Front

Define the sine function in a right triangle.

Back

The sine function is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine of 0°?

Back

cos 0° = 1.

Front

What is the tangent of 45°?

Back

tan 45° = 1.

Front

What is the Pythagorean identity involving sine and cosine?

Back

sin²(θ) + cos²(θ) = 1.

Front

What is the value of cos 30°?

Back

cos 30° = √3/2.