f(x)=2cos(xpi+.20)

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Solution for f(x)=2cos(xpi+.20) equation: 


Simplifying
f(x) = 2cos(xpi + 0.20)

Multiply f * x
fx = 2cos(xpi + 0.20)

Reorder the terms:
fx = 2cos(0.20 + ipx)
fx = (0.20 * 2cos + ipx * 2cos)

Reorder the terms:
fx = (2ciopsx + 0.4cos)
fx = (2ciopsx + 0.4cos)

Solving
fx = 2ciopsx + 0.4cos

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 2ciops + 0.4cosx-1

Simplifying
f = 2ciops + 0.4cosx-1

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