In Exercise 13b, you developed the formula cos2 A = 1+cos2A/2. Use this formula to develop the
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In Exercise 13b
Use another double-angle identity to develop an expression equivalent to cos2A that does not contain sin2A.
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Related Book For
Discovering Advanced Algebra An Investigative Approach
ISBN: 978-1559539845
1st edition
Authors: Jerald Murdock, Ellen Kamischke, Eric Kamischke
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