Question

give this answer step by step
class X sum 3​

Answer 1

Answer:

answer from my notebook , it is correct

Answer 2

Answer:

(1) | -1 7 |

| 2 4 | = (-4-14) = -18

(2) | 5 3 |

| -7 0 | = 0-(-21) = 21

(3) | 7/3 5/3 |

| | = (7/3)(1/2) - (3/2)(5/3)

| 3/2 1/2|

= 7/6 - 15/6

= -8/6

= -4/3