Trigonometry EXTRA CREDIT for Midterm

Front

What is the length of the hypotenuse in a right triangle with legs of lengths 16 and 30?

Back

34

Front

What is the equation of the graph that represents a vertical stretch of the cosine function?

Back

y = 5 cos x

Front

What is the ratio for Tangent in a right triangle?

Back

Opp/Adj

Front

Which graph represents the equation y = cos2x?

Back

Graph A

Front

What is the correct ratio of the opposite side to the hypotenuse in a right triangle?

Back

7/24

Front

Define the sine function in terms of a right triangle.

Back

Sine is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

Define the cosine function in terms of a right triangle.

Back

Cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the length of the hypotenuse.

Front

What is the unit circle?

Back

A circle with a radius of 1 centered at the origin of a coordinate plane, used to define trigonometric functions.

Front

What is the relationship between sine and cosine?

Back

Sine and cosine are co-functions: sin(θ) = cos(90° - θ).