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  Home : Math & Science : Math Study Guides : Trigonometry : More Trigonometric Identities : Problems
More Trigonometric Identities
 
 
Problems
Problem 4.1: Express the following as a sum or difference: sin(56)cos(42). [Solution]
Problem 4.2: Express the following as a sum or difference: cos(115)cos(60). [Solution]
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