What is the periodicity of f(θ)=cos(2θ)cos(4θ) ?

The periodicity of f(θ)=cos(2θ)cos(4θ) is pi

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periodicity of f(θ)=cos(2θ)cos(4θ)

periodicity

f (θ) = cos (2 θ) cos (4 θ)

π

Solution steps

cos (2 θ) cos (4 θ)

is composed of the following functions and periods:

cos (2 θ)

with periodicity of

\frac{2 π}{2}

The compound periodicity is:

= π

f (t) = (2 - 3 t^{2})^{3}

y = \frac{1}{3} x - 7

f (x) = x + \frac{ln ( x )}{x}

f (x) = 1 + lo g_{3} (x)

f (x) = 3 \cdot 4^{x}

What is the periodicity of f(θ)=cos(2θ)cos(4θ) ?
The periodicity of f(θ)=cos(2θ)cos(4θ) is pi