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Pearson Algebra 2 Common Core, 2011

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Pearson Algebra 2 Common Core, 2011 View details

2. Solving Trigonometric Equations Using Inverses

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Exercise 74 Page 918

Use the Reciprocal Identity $sec θ = \frac{1}{c o s θ}$ and Tangent Identity $tan θ = \frac{s i n θ}{c o s θ} .$

$tan^{2} θ$

Practice makes perfect

At first, let's recall one of the Reciprocal Identities.

sec θ = \frac{1}{cos θ}

With this identity, we can substitute

\frac{1}{c o s θ}

for

sec θ

in our expression.

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Subchapter links

Lesson Check p.915

Practice and Problem-Solving Exercises p.916-918

Standardized Test Prep p.918

Mixed Review p.918