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Find the exact value of the following expression. Select the correct choice below and, if necessary, fill in the answer box t

Find the exact value of cos (Type your answer in radians.)

Find the exact value of the following expression. cos -(0) Select the correct choice below and, if necessary, fill in the ans

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o sis(_V3) -- sink.) 6.8 (-a)=-fcl) =- sinkom ) =-5 - Sis_v3 ) = 5 @ Cos(-1) = 1 (5 (1) (Cost (n) =T-Costa) =ñ- Cost(los)

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