Question
If $\begin{bmatrix}\text{x}+\text{y}\\\text{x}-\text{y} \end{bmatrix}=\begin{bmatrix}2&1\\4&3 \end{bmatrix}\begin{bmatrix}1\\-2\end{bmatrix},$ then write the value of (x, y).
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| Xi | 0 | 1 | 2 |
| Pi | 3c3 | 4c - 10c2 | 5c - 1 |
Where c > 0
Find: c.
$\vec{\text{a}}=2\hat {\text{i}}-\hat{\text{j}}+2\hat{\text{k}}$ and $\vec{\text{b}} =4\hat{\text{i}}+4\hat{\text{j}}-2\hat{\text{k}}$
| $\text{X}=\text{x}_\text{i}:$ | $1$ | $2$ | $3$ |
| $\text{P}(\text{X}=\text{x}_\text{i}):$ | $\frac{1}{4}$ | $\frac{1}{8}$ | $\frac{5}{8}$ |