Find the determinant of [6 3]
[10 5]
umm what's a determinant?

Question

Find the determinant of [6      3]
                                     [10    5]
umm what's a determinant?

jim_thompson5910 · Answer

in the case of the 2x2 matrix

|dw:1372291826621:dw|

the determinant of that is

D = a*d - b*c

jim_thompson5910 · Answer

so in your case, you have

[6           3]
[10         5]


which means that a = 6, b = 3, c = 10 and d = 5

so,

D = a*d - b*c

D = 6*5 - 3*10

D = 30 - 30

D = 0

So the determinant is 0

jim_thompson5910 · Answer

the determinant is important for a lot of applications, but you'll find it's really useful in determining if you will have a consistent system or not

jim_thompson5910 · Answer

yes pretty much, that's a good way to remember it

acacia · Answer

Ohh okay! Gee thanks smarty pants!!

jim_thompson5910 · Answer

lol you're welcome

acacia · Answer

@jim_thompson5910 can you help me find the inverse of another problem?

jim_thompson5910 · Answer

sure, what do you need help with?

acacia · Answer

|dw:1372292157719:dw|