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The value 31 is a solution for the equation 3/2c0s9+2 = -1. 5 O A. True B. False

The value 31 is a solution for the equation 3/2c0s9+2 = -1. 5 O A. True B. False-example-1
User Mark Mascolino
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1 Answer

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18 votes

We need to verify if the given value is a solution to the equation. For that we will replace theta by the given value and verify if we find -1 on the left side.


\begin{gathered} 3\sqrt[]{2}\cdot\cos ((3\pi)/(4))+2 \\ 3\sqrt[]{2}\cdot(\frac{-1}{\sqrt[]{2}})+2_{} \\ -3+2 \\ -1 \end{gathered}

Since we found "-1". The answer is True.

User Rishabh Gupta
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