What is the periodicity of f(x)=2cos(2x)cos(x) ?

The periodicity of f(x)=2cos(2x)cos(x) is 2pi

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periodicity of f(x)=2cos(2x)cos(x)

periodicity

f (x) = 2 cos (2 x) cos (x)

2 π

Solution steps

2 cos (2 x) cos (x)

is composed of the following functions and periods:

cos (2 x)

with periodicity of

\frac{2 π}{2}

The compound periodicity is:

= 2 π

f (x) = 2 x + 3, - 2 \leq x < 1

f (t) = \frac{( 1 - cos ( t ) )}{t ^{2}}

f (x) = \frac{x + 1}{x ^{2} - 4 x - 12}

f (x) = - 2 x + 4

f (x) = x^{3} + 3 x^{2} - 45 x + 4

What is the periodicity of f(x)=2cos(2x)cos(x) ?
The periodicity of f(x)=2cos(2x)cos(x) is 2pi