Reciprocal and Trigonometric Ratios

This video tutorial introduces the six trigonometric ratios: sine, cosine, tangent, cosecant, secant, and cotangent. It explains how to derive these ratios using a right triangle and provides examples to illustrate their application. The video also covers the simplification of these ratios and offers practice problems to reinforce understanding.

Which of the following is NOT a trigonometric ratio?

• Sine

• Cosine

• Tangent

• Quadrant

What is the longest side of a right triangle called?

• Adjacent

• Opposite

• Base

• Hypotenuse

The sine of an angle in a right triangle is the ratio of which two sides?

• Adjacent over Hypotenuse

• Opposite over Hypotenuse

• Hypotenuse over Opposite

• Opposite over Adjacent

What is the cosine of an angle in a right triangle?

• Hypotenuse over Opposite

• Adjacent over Hypotenuse

• Opposite over Hypotenuse

• Opposite over Adjacent

Tangent of an angle is the ratio of which sides?

• Adjacent over Hypotenuse

• Opposite over Hypotenuse

• Hypotenuse over Opposite

• Opposite over Adjacent

What is the reciprocal of sine called?

• Cotangent

• Secant

• Tangent

• Cosecant

Secant is the reciprocal of which trigonometric ratio?

• Tangent

• Cosine

• Cosecant

• Sine

Cotangent is the reciprocal of which ratio?

• Secant

• Cosine

• Sine

• Tangent

What is the reciprocal of the sine ratio?

• Tangent

• Cotangent

• Cosecant

• Secant

Which trigonometric ratio is the reciprocal of cosine?

• Secant

• Cosecant

• Sine

• Tangent