f(0)=3cos(2(0))

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Solution for f(0)=3cos(2(0)) equation: 


Simplifying
f(0) = 3cos(2(0))

Reorder the terms for easier multiplication:
0f = 3cos(2(0))

Anything times zero is zero.
0f = 3cos(2(0))

Multiply 2 * 0
0 = 3cos(0)

Anything times zero is zero.
0 = 3cos(0)

Reorder the terms for easier multiplication:
0 = 3 * 0cos

Multiply 3 * 0
0 = 0cos

Anything times zero is zero.
0 = 0cos

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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