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Popular Functions >

periodicity of f(x)=-2cos(3x)

Solution

periodicity

f (x) = - 2 cos (3 x)

Solution

\frac{2 π}{3}

+1

Decimal

2.09439 \dots

Solution steps

Periodicity of

a \cdot cos (b x + c) + d = \frac{periodicity of cos ( x )}{∣ b ∣}

Periodicity of

cos (x)

is

2 π

= \frac{2 π}{∣ 3 ∣}

Simplify

= \frac{2 π}{3}

Graph

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Frequently Asked Questions (FAQ)

What is the periodicity of f(x)=-2cos(3x) ?
The periodicity of f(x)=-2cos(3x) is (2pi)/3