Question: Simplify the following expression : 3 COS -+x 2 Simplify the following expression: COS +x 3

Simplify the following expression : 3 COS -+x 2 Simplify the following expression: COS +x 3 

Simplify the following expression : 3 COS -+x 2 Simplify the following expression: COS +x 3

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