Bài 7. Biện luận theo tham số a hạng của các ma trận sau: a)
1 2 1
0 3 2 1
5 1 0
2 7 0 1
a

a
  
 

 
  
    

b)
0 0 2 5
0 3 4
0 11 4 7
3 4 1
a

a
   
 
 
   

c)
1 2 0 3
1 1 4
0 5 1 1
0 4 0 6
a
   
 

 
  
  

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

step-by-step explanation:

compare

step-by-step explanation:   divide the numerator by the denominator to get the decimal

it would still be 193

if divide by 100 then 1.93

i am not sure

the answer is 0.000652422

but if you ment to ask what is 6131 divided by 4, it is 1532.75.

step-by-step explanation: