Cos^2(2x)-sin^2(2x)=0

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Solution for Cos^2(2x)-sin^2(2x)=0 equation: 


Simplifying
Cos2(2x) + -1sin2(2x) = 0

Remove parenthesis around (2x)
os2C * 2x + -1sin2(2x) = 0

Reorder the terms for easier multiplication:
2os2C * x + -1sin2(2x) = 0

Multiply os2C * x
2os2xC + -1sin2(2x) = 0

Remove parenthesis around (2x)
2os2xC + -1in2s * 2x = 0

Reorder the terms for easier multiplication:
2os2xC + -1 * 2in2s * x = 0

Multiply -1 * 2
2os2xC + -2in2s * x = 0

Multiply in2s * x
2os2xC + -2in2sx = 0

Reorder the terms:
-2in2sx + 2os2xC = 0

Solving
-2in2sx + 2os2xC = 0

Solving for variable 'i'.

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

Add '-2os2xC' to each side of the equation.
-2in2sx + 2os2xC + -2os2xC = 0 + -2os2xC

Combine like terms: 2os2xC + -2os2xC = 0
-2in2sx + 0 = 0 + -2os2xC
-2in2sx = 0 + -2os2xC
Remove the zero:
-2in2sx = -2os2xC

Divide each side by '-2n2sx'.
i = n-2osC

Simplifying
i = n-2osC

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