16cos^2x-16cos^2x=9

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Solution for 16cos^2x-16cos^2x=9 equation: 


Simplifying
16cos2x + -16cos2x = 9

Combine like terms: 16cos2x + -16cos2x = 0
0 = 9

Solving
0 = 9

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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