Pearson Algebra 2 Common Core, 2011
PA
Pearson Algebra 2 Common Core, 2011 View details
2. Solving Trigonometric Equations Using Inverses
Continue to next subchapter

Exercise 75 Page 918

Recall the Trigonometric Identities. Start by using the Pythagorean Identity

Practice makes perfect
At first, let's recall one of the Pythagorean Identities. We will need to rearrange the terms so that we can use it for our expression.
With this identity, we can substitute for in our expression.