Choosing Trig Functions

Front

What is the sine function?

Back

The sine function (sin) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the opposite side to the length of the hypotenuse. It is defined as: sin(θ) = opposite/hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the cosine function?

Back

The cosine function (cos) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the length of the hypotenuse. It is defined as: cos(θ) = adjacent/hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the tangent function?

Back

The tangent function (tan) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the opposite side to the length of the adjacent side. It is defined as: tan(θ) = opposite/adjacent.

Tags

CCSS.HSF.TF.A.2

Front

What is the relationship between sine and cosine?

Back

The sine and cosine functions are related through the Pythagorean identity: sin²(θ) + cos²(θ) = 1.

Tags

CCSS.HSF.TF.C.8

Front

When should you use the sine function?

Back

Use the sine function when you have the length of the opposite side and the hypotenuse of a right triangle.

Tags

CCSS.HSG.SRT.C.6

Front

When should you use the cosine function?

Back

Use the cosine function when you have the length of the adjacent side and the hypotenuse of a right triangle.

Tags

CCSS.HSG.SRT.C.6

Front

When should you use the tangent function?

Back

Use the tangent function when you have the length of the opposite side and the adjacent side of a right triangle.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for sin(θ)?

Back

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for cos(θ)?

Back

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for tan(θ)?

Back

Tags

CCSS.HSG.SRT.C.6