Trigonometric Identities
Trigonometric Identities
Trigonometric Identities
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Example 1<br />
Copyright © 2009 Pearson Addison-Wesley 1.1-10<br />
FINDING FUNCTION VALUES OF 2θ<br />
GIVEN INFORMATION ABOUT θ (cont.)<br />
Now find tan θ and then use the tangent doubleangle<br />
identity.<br />
5.5-10