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Find the exact value of the expression given below. cos( -15°) cos( -15°) = (Simplify your answer, including any radicals. Us
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abson hig 2 cos2o - I A son coso = I VC4 * 9 28) og som + FOST son (L+ Cos 30 2 cos(-15) = Cos 15 cos (-15%) =ta IN (2 + NZ {

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