8. Prove the following (I +CD)-'C = C(I+ DC)-1 by expressing the C+ CDC in two forms.
8. Prove the following (I +CD)-'C = C(I+ DC)-1 by expressing the C+ CDC in two forms.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 54E
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