3 years ago

Sorry for the bad quality!!! Please help me out!!

1 answer:

8 0

Answer:

Step-by-step explanation:

Then last two are correct.

I hope I helped you.

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tankabanditka [31]

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3 years ago

Kryger [21]

Answer:

Step-by-step explanation:

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3 years ago

slamgirl [31]

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3 years ago

Ilya [14]

Notice that:

$\cos (\frac{4\pi}{3})=\cos (\pi+\frac{\pi}{3})\text{.}$

Recall that:

$\cos (\pi+x)=-\cos (x)\text{.}$

Therefore:

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Answer:

$cos(\frac{4\pi}{3})=-\frac{1}{2}\text{.}$

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1 year ago

Scilla [17]

8/2 = 4 it is the ratio

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3 years ago