Question

Determine o período das seguintes funções: (a) f(x) = 4 cos(x) (b) f(x) = 2 − sen(x) (c) f(x) = 3 cos2x 2 (d) f(x) = 5 + cos(x) (e) f(x) = 2 COS(x) (f) f(x) = 3 cos( x)

Answer 1

a)

$\mathsf{p=\dfrac{2\pi}{1}=2\pi}$

b)

$\mathsf{p=\dfrac{2\pi}{1}=2\pi}$

c)

$\mathsf{p=\dfrac{2\pi}{2}=\pi}$

d)

$\mathsf{p=\dfrac{2\pi}{1}=2\pi}$

e)

$\mathsf{p=\dfrac{2\pi}{1}=2\pi}$

f)

$\mathsf{p=\dfrac{2\pi}{1}=2\pi}$