Question

solve a
deteminant

(6 1/5)(7 4)​

Answer 1

Answer:

Step-by-step explanation:

Minor of 6=  

∣

∣

∣

∣

∣

∣

​

 

1

0

​

 

3

4

​

 

∣

∣

∣

∣

∣

∣

​

=1×4−3×0=−4

Cofactor = (−1)  

2+1

(4)=−4

Minor of 5=  

∣

∣

∣

∣

∣

∣

​

 

2

3

​

 

3

4

​

 

∣

∣

∣

∣

∣

∣

​

=2×4−3×3=−1

Cofactor = (−1)  

2+2

(−1)=−1

minor of 0=  

∣

∣

∣

∣

∣

∣

​

 

2

6

​

 

3

7

​

 

∣

∣

∣

∣

∣

∣

​

=2×7−3×6=−4

Cofactor = (−1)  

3+2

(−4)=4.

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