cosine((pi)(x))=(4x^2-1)

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Solution for cosine((pi)(x))=(4x^2-1) equation: 


Simplifying
cosine((pi)(x)) = (4x2 + -1)

Multiply ip * x
ceinos(ipx) = (4x2 + -1)

Multiply ceinos * ipx
cei2nopsx = (4x2 + -1)

Reorder the terms:
cei2nopsx = (-1 + 4x2)

Remove parenthesis around (-1 + 4x2)
cei2nopsx = -1 + 4x2

Solving
cei2nopsx = -1 + 4x2

Solving for variable 'c'.

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

Divide each side by 'ei2nopsx'.
c = -1e-1i-2n-1o-1p-1s-1x-1 + 4e-1i-2n-1o-1p-1s-1x

Simplifying
c = -1e-1i-2n-1o-1p-1s-1x-1 + 4e-1i-2n-1o-1p-1s-1x

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