tan(2x)=cos(x)

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Solution for tan(2x)=cos(x) equation: 


Simplifying
tan(2x) = cos(x)

Remove parenthesis around (2x)
ant * 2x = cos(x)

Reorder the terms for easier multiplication:
2ant * x = cos(x)

Multiply ant * x
2antx = cos(x)

Multiply cos * x
2antx = cosx

Solving
2antx = cosx

Solving for variable 'a'.

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

Divide each side by '2ntx'.
a = 0.5cn-1ost-1

Simplifying
a = 0.5cn-1ost-1

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