-sin(2x)=(2*cos(2*x))

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Solution for -sin(2x)=(2*cos(2*x)) equation: 


Simplifying
-1sin(2x) = (2cos(2x))

Remove parenthesis around (2x)
-1ins * 2x = (2cos(2x))

Reorder the terms for easier multiplication:
-1 * 2ins * x = (2cos(2x))

Multiply -1 * 2
-2ins * x = (2cos(2x))

Multiply ins * x
-2insx = (2cos(2x))

Remove parenthesis around (2x)
-2insx = (2cos * 2x)

Reorder the terms for easier multiplication:
-2insx = (2 * 2cos * x)

Multiply 2 * 2
-2insx = (4cos * x)

Multiply cos * x
-2insx = (4cosx)

Solving
-2insx = (4cosx)

Solving for variable 'i'.

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

Divide each side by '-2nsx'.
i = (-2cn-1o)

Simplifying
i = (-2cn-1o)

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