How to use a triangle to evaluate for the six trig functions of 60 degrees

The video tutorial reviews trigonometric functions, focusing on sine, cosine, and tangent. It explains how to calculate these functions for 60 degrees and compares them with 30 degrees. The tutorial also introduces reciprocal identities, including cosecant, secant, and cotangent, and demonstrates how to rationalize denominators.

What is the side opposite to the 60-degree angle in a right triangle called?

• Adjacent

• Base

• Hypotenuse

• Opposite

What is the sine of 60 degrees?

• sqrt 3 / 2

• 1/2

• sqrt 2 / 2

• 1

How is the cosine of 60 degrees expressed as a decimal?

• 0.707

• 0.866

• 1

• 0.5

What is the tangent of 30 degrees?

• 0

• 1/sqrt 3

• sqrt 3

• 1

Which trigonometric function is the reciprocal of sine?

• Secant

• Cosecant

• Cotangent

• Tangent

What is the reciprocal of cosine known as?

• Cosecant

• Tangent

• Secant

• Cotangent

How do you rationalize the denominator of 1/sqrt 3?

• Multiply by 3

• Multiply by sqrt 3/3

• Multiply by sqrt 3

• Multiply by 1