3 years ago

Can anyone help me out

1 answer:

7 0

Answer:

6 is the correct answer

Step-by-step explanation:

4*2=8

3*2=6

x=6

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Alinara [238K]

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Step-by-step explanation:

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Artemon [7]

The answer is 29, I just didn’t on my head right now.

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Ivahew [28]

$9\cos(2t)=6\implies\cos(2t)=\dfrac23$

Using the fact that cos is 2π-periodic, we have

$\cos(2t)=\dfrac23\implies2t=\cos^{-1}\left(\dfrac23\right)+2n\pi$

That is, $\cos(\theta+2n\pi)=\cos\theta$ for any $\theta$ and integer $n$ .

$\implies t=\dfrac12\cos^{-1}\left(\dfrac23\right)+n\pi$

We get 2 solutions in the interval [0, 2π] for $n=0$ and $n=1$ ,

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Step-by-step explanation:

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It is a definitely your welcome

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3 years ago