ria2389
ria2389 ria2389
  • 02-05-2019
  • Mathematics
contestada

Plz help me with this

Plz help me with this class=

Respuesta :

tramserran
tramserran tramserran
  • 02-05-2019

Answer:  [tex]\bold{d)\quad y = 3 cos (\dfrac{4}{3}x-2\pi) + 2}[/tex]

Step-by-step explanation:

[tex]\text{Period = }\dfrac{2\pi}{B}\\\\\\\dfrac{1}{2}\text{Period = }\dfrac{1}{2}\cdot \dfrac{2\pi}{B}\quad =\dfrac{2\pi}{2B}\\\\\\\text{In the given equation, B = }\dfrac{2}{3}\implies 2B=\dfrac{2\cdot 2}{3}\quad =\dfrac{4}{3}\\[/tex]

The only option that has B = 4/3 is the last one.

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