Precalculus Trigonometry Functions

Match the special right triangle relationships of 30 degrees to their trigonometric function values of the special angles.

• cosθ

• sinθ

• tanθ

Answer explanation

This is something you will really need to memorize!

Tags

CCSS.HSF.TF.A.2

Match the special right triangle relationships of 45 degrees to their trigonometric function values of the special angles.

• cosθ

• 1

• tanθ

• sinθ

Answer explanation

This is something you'll really need to memorize!

Tags

CCSS.HSF.TF.A.2

Match the special right triangle relationships of 60 degrees to their trigonometric function values of the special angles.

• tanθ

• cosθ

• sinθ

Answer explanation

This is something you will really need to memorize!

Tags

CCSS.HSF.TF.A.2

What Greek letter is often used to represent an acute angle of a right triangle?

• Delta

• Alpha

• Theta

• Beta

Answer explanation

Which side is the opposite?

• AB

• BC

• CA

Answer explanation

The opposite is the side opposite from the reference angle, which is in this case the theta.

Tags

CCSS.HSG.SRT.C.6

Use a calculator to evaluate the trigonometric function. Round your answer to four decimal places.

sec 1.8

Tags

CCSS.HSF.TF.A.2

Determine two coterminal angles (one positive and one negative) for each angle. Give your answer in radians.

Tags

CCSS.HSF.TF.C.8

Find the values of the angle in degrees and radians without the aid of a calculator. (HINT: use Quadrant I)

Tags

CCSS.HSF.TF.A.2

A surveyor is standing 150 feet from the base of a building. If the top of the building is 400 feet off the ground, at what angle of elevation would the surveyor have to look to see the top of the building?

• 60.0^o

• 63.3^o

• 72.4^o

• 82.9^o

Tags

CCSS.HSG.SRT.C.8