find the value of determinant
1) 1upon2
2) 4upon2
3) 3upon 2
4)5upon2
Answers
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3
Step-by-step explanation:
ANSWER
∣
∣
∣
∣
∣
∣
∣
∣
19
21
28
6
3
11
7
15
6
∣
∣
∣
∣
∣
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=19(3×6−11×15)
−6(21×6−15×28)
+7(21×11−3×28)
=19(−147)−6(−294)
+7(147)
=0
solution
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