Pre-Calc/Trig Unit 3: Analytic Trig and Applications/5.3 and 5.4 Sum//Difference Identities Use Identities to find the exact value.cos 36° cos 24° - sin 36° sin 24° Use Identities to find the exact value.

cos 36° cos 24° - sin 36° sin 24°

]]> 1.0000000 0.3333333 0 true true abc

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]]> Incorrect.  36+24=60.  Evaluate Cos 60

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