sin^2x+sin^2(3x)=1

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Solution for sin^2x+sin^2(3x)=1 equation: 


Simplifying
sin2x + sin2(3x) = 1

Remove parenthesis around (3x)
in2sx + in2s * 3x = 1

Reorder the terms for easier multiplication:
in2sx + 3in2s * x = 1

Multiply in2s * x
in2sx + 3in2sx = 1

Combine like terms: in2sx + 3in2sx = 4in2sx
4in2sx = 1

Solving
4in2sx = 1

Solving for variable 'i'.

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

Divide each side by '4n2sx'.
i = 0.25n-2s-1x-1

Simplifying
i = 0.25n-2s-1x-1

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