f(t)=2cos(t)+sin(2t)

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Solution for f(t)=2cos(t)+sin(2t) equation:


Simplifying
f(t) = 2cos(t) + sin(2t)

Multiply f * t
ft = 2cos(t) + sin(2t)

Multiply cos * t
ft = 2cost + sin(2t)

Remove parenthesis around (2t)
ft = 2cost + ins * 2t

Reorder the terms for easier multiplication:
ft = 2cost + 2ins * t

Multiply ins * t
ft = 2cost + 2inst

Solving
ft = 2cost + 2inst

Solving for variable 'f'.

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

Divide each side by 't'.
f = 2cos + 2ins

Simplifying
f = 2cos + 2ins

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