SOLUTION: Write the expression as an algebraic expression in x for x > 0. cos (1/2 arccos x)

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Question 931435: Write the expression as an algebraic expression in x for x > 0.
cos (1/2 arccos x)

Answer by lwsshak3(11628)   (Show Source): You can put this solution on YOUR website!
Write the expression as an algebraic expression in x for x > 0.
cos (1/2 arccos x)=cos(x/2)=±

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