Question
Use a double angle formula to find the exact value of the given expression 2 cos 2 3r 8 3r 2 cos 2 1 1
Use a double angle formula to find the exact value of the given expression 2 cos 2 3r 8 3r 2 cos 2 1 1 8 Simplify your answer Type an exact answer using radicals as needed Use integers or fractions for any numbers in the expression
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A First Course In Finite Elements
Authors: Jacob Fish, Ted Belytschko
1st Edition
0470510846, 9780470510841
