List - I | List – II | ||
A. | Lemur | i. | Flying phalanger |
B. | Bobcat | ii. | Numbat |
C. | Anteater | iii. | Spotted cuscus |
D. | Flying squirrels | iv. | Tasmanian tiger cat |
If $ X = A \times B $, $ A = \begin{bmatrix} 1 & 2 \\-1 & 1 \end{bmatrix} $, $ B = \begin{bmatrix} 3 & 6 \\5 & 7 \end{bmatrix} $, find $ x_1 + x_2 $.