Saved Bookmarks
| 1. |
If \(\begin{bmatrix} y\,+\,2x & 5 \\[0.3em] -x\,& 3 \\[0.3em] \end{bmatrix} \)= \(\begin{bmatrix}7 & 5 \\[0.3em] -2\,& 3 \\[0.3em] \end{bmatrix} \), then find the value of y. |
|
Answer» Equating the corresponding elements, we get y + 2x = 7 and – x = – 2 ⇒ x = 2 and y + 2 × 2 = 7 ⇒ y = 7 – 4 = 3 |
|