4cos^2(2x)+8cos^2(2x)=7

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Solution for 4cos^2(2x)+8cos^2(2x)=7 equation:


Simplifying
4cos2(2x) + 8cos2(2x) = 7

Remove parenthesis around (2x)
4cos2 * 2x + 8cos2(2x) = 7

Reorder the terms for easier multiplication:
4 * 2cos2 * x + 8cos2(2x) = 7

Multiply 4 * 2
8cos2 * x + 8cos2(2x) = 7

Multiply cos2 * x
8cos2x + 8cos2(2x) = 7

Remove parenthesis around (2x)
8cos2x + 8cos2 * 2x = 7

Reorder the terms for easier multiplication:
8cos2x + 8 * 2cos2 * x = 7

Multiply 8 * 2
8cos2x + 16cos2 * x = 7

Multiply cos2 * x
8cos2x + 16cos2x = 7

Combine like terms: 8cos2x + 16cos2x = 24cos2x
24cos2x = 7

Solving
24cos2x = 7

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Divide each side by '24os2x'.
c = 0.2916666667o-1s-2x-1

Simplifying
c = 0.2916666667o-1s-2x-1

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