Lesson 2 - Verifying the Identities

What is the purpose of verifying trigonometric identities?

• To find the value of theta

• To show that two expressions are equal for all theta

• To solve for x in an equation

• To convert degrees to radians

Are you enjoying the video lesson?

• Yes

• No

Which identity is used to simplify expressions in trigonometric identities?

• Pythagorean identity

• Quadratic identity

• Linear identity

• Exponential identity

What happens when you subtract cosine from one in trigonometric identities?

• You get sine squared

• You get tangent

• You get zero

• You get cosine squared

Why can't we use specific angle values like pi to verify identities?

• Because it requires a calculator

• Because it only works for angles in degrees

• Because it is too complex

• Because it results in undefined expressions

What is the result of simplifying sine squared plus cosine squared?

• Undefined

• Zero

• One

• Two