The simplest form of the fraction is 9/25
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Answer:
![y=2cos(4\pi x)\\ ](https://tex.z-dn.net/?f=y%3D2cos%284%5Cpi%20x%29%5C%5C%0A)
Step-by-step explanation:
Since the amplitude of the cosine function is 2, I would put the multiply it by 2. There is no phase shift
The period is 1/2, so it would be 4pi
Plug them in into y=Acos(Bx), y=2cos(4pix)
Answer:
B ------- DE ≅ RS
it's B because DE and RS both contain the equal angles.