COS^2(3X)-SIN^2(3X)X=0

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Solution for COS^2(3X)-SIN^2(3X)X=0 equation:


Simplifying
COS2(3X) + -1SIN2(3X) * X = 0

Remove parenthesis around (3X)
COS2 * 3X + -1SIN2(3X) * X = 0

Reorder the terms for easier multiplication:
3COS2 * X + -1SIN2(3X) * X = 0

Multiply COS2 * X
3COS2X + -1SIN2(3X) * X = 0

Remove parenthesis around (3X)
3COS2X + -1IN2S * 3X * X = 0

Reorder the terms for easier multiplication:
3COS2X + -1 * 3IN2S * X * X = 0

Multiply -1 * 3
3COS2X + -3IN2S * X * X = 0

Multiply IN2S * X
3COS2X + -3IN2SX * X = 0

Multiply IN2SX * X
3COS2X + -3IN2SX2 = 0

Solving
3COS2X + -3IN2SX2 = 0

Solving for variable 'C'.

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

Add '3IN2SX2' to each side of the equation.
3COS2X + -3IN2SX2 + 3IN2SX2 = 0 + 3IN2SX2

Combine like terms: -3IN2SX2 + 3IN2SX2 = 0
3COS2X + 0 = 0 + 3IN2SX2
3COS2X = 0 + 3IN2SX2
Remove the zero:
3COS2X = 3IN2SX2

Divide each side by '3OS2X'.
C = IN2O-1S-1X

Simplifying
C = IN2O-1S-1X

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