-sin(3x)=cos(3x)

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Solution for -sin(3x)=cos(3x) equation:


Simplifying
-1sin(3x) = cos(3x)

Remove parenthesis around (3x)
-1ins * 3x = cos(3x)

Reorder the terms for easier multiplication:
-1 * 3ins * x = cos(3x)

Multiply -1 * 3
-3ins * x = cos(3x)

Multiply ins * x
-3insx = cos(3x)

Remove parenthesis around (3x)
-3insx = cos * 3x

Reorder the terms for easier multiplication:
-3insx = 3cos * x

Multiply cos * x
-3insx = 3cosx

Solving
-3insx = 3cosx

Solving for variable 'i'.

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

Divide each side by '-3nsx'.
i = -1cn-1o

Simplifying
i = -1cn-1o

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