SOLUTION: if determinant of |a b c | |l m n | |p q r | is 2 then what is the value of |6a 3b 15c

SOLUTION: if determinant of |a b c | |l m n | |p q r | is 2 then what is the value of |6a 3b 15c | |2l m 5n |

Question 432361: if determinant of |a b c |
|l m n |
|p q r |
is 2 then what is the value of |6a 3b 15c |
|2l m 5n |
|2p q 5r |
?
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
, after factoring 2 from the 1st column, and 5 from the 3rd column.
= , after factoring 3 from the 1st row.
Hence the value of the determinant is 2*5*3*2 = 60.
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