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Use appropriate sum or difference identities to find the exact value of the expression cos ( - 105). Support your answer with a calculator approximation.
Use appropriate sum or difference identities to find the exact value of the expression cos ( - 105"). Support your answer with a calculator approximation. Choose the correct answer below. OA. 16 - 12 4 OB. 12 + 16 4 OC V2 - 16 4 OD. 12+16 4
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