SOLUTION: Let g(x)= cosx and h(x)=2x. Find the exact value of the expression. (h o g)(21pi/4)

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Question 1064999: Let g(x)= cosx and h(x)=2x. Find the exact value of the expression. (h o g)(21pi/4)
Answer by josgarithmetic(39620) About Me  (Show Source):