Intro to Solving Trigonometric Equations

Pythagorean Identities

100

1-cos²x=?

sin²x

200

tan²x+1=?

sec²x

300

csc²x-cot²x=?

1

Unit Circle

100

True or False. The unit circle helps solve trigonometric equations.

True

200

True or False. The coordinates on the unit circle represent cosine and tangent. 

False. They are cosine and sine.

300

How many degrees are on the unit circle?

360 degrees

Reference Angle

100

An acute angle formed by the x axis and the terminal side of a given angle is a...

A reference angle

200

What would be the reference angle of 200 degrees?

20

300

True or False. To find the reference angle of something in the fourth quadrant you would have 360-(the degree you are given)= the reference angle.

True

Basic Trigonometry

100

When looking at a triangle, sine is equal to what parts of the triangle?

opposite over hypotenuse

200

When looking at a triangle, cosine is equal to what parts of the triangle?

adjacent over hypotenuse

300

When looking at a triangle, tangent is equal to what parts of the triangle?

opposite over adjacent