What is the periodicity of f(x)=-4cos(2/5 x)-2 ?

The periodicity of f(x)=-4cos(2/5 x)-2 is 5pi

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periodicity of f(x)=-4cos(2/5 x)-2

periodicity

f (x) = - 4 cos (\frac{2}{5} x) - 2

5 π

Solution steps

Periodicity of

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

Periodicity of

cos (x)

2 π

= \frac{2 π}{\frac{2}{5}}

Simplify

= 5 π

f (x) = x + 12

3 x^{3} + 2

y = 5 cos (\frac{1}{4} x)

y = 1.5 ln (x + 5)

2 x - 4 y - 12 = 0

What is the periodicity of f(x)=-4cos(2/5 x)-2 ?
The periodicity of f(x)=-4cos(2/5 x)-2 is 5pi