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April 25, 2015

Homework Help: Math

Posted by AJ on Monday, September 23, 2013 at 4:20pm.

If
sin(x) = 1/3 and sec(y) = 29/21
, where x and y lie between 0 and π/2, evaluate the expression using trigonometric identities. (Enter an exact answer.)
cos(2y)

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