Which compound angle formula is the easiest to use to develop the expression cos² 8-sin²0? a) subtraction formula for sine Ob) addition formula for cosine Oc) addition formula for sine Od) subtraction formula for cosine
Which compound angle formula is the easiest to use to develop the expression cos² 8-sin²0? a) subtraction formula for sine Ob) addition formula for cosine Oc) addition formula for sine Od) subtraction formula for cosine
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 16E
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