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07-01-2020
Mathematics

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What period of the functions f(x) = cos 2x? Please help thank you.

What period of the functions fx cos 2x Please help thank you class=

Respuesta :

Matheng Matheng

07-01-2020

Answer:

option 3 ⇒ π

Step-by-step explanation:

The general equation of the given function is as following

f(x) = A cos (Bx)

Where A is the amplitude

and B = 2π/period

For the given function f(x) = cos 2x

B = 2

period = 2π/B = 2π/2 = π

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