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anonymous
 5 years ago
a) Find the product of the 2 matrices below showing all your working.
[2 7] [3 8]
[1 4] [5 0]
b) Find the product of the 2 matrices below showing all your working and explain the significance of this result.
[3 8] [2 7]
[5 0] [1 4]
If A= [7 8]
[5 2] Find A^1
anonymous
 5 years ago
a) Find the product of the 2 matrices below showing all your working. [2 7] [3 8] [1 4] [5 0] b) Find the product of the 2 matrices below showing all your working and explain the significance of this result. [3 8] [2 7] [5 0] [1 4] If A= [7 8] [5 2] Find A^1

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hm.. how to do this one..?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1i believe its... 2.3+7.5 2.8+7.0 1.3+4.5 1.8+4.0

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hm.. I don't know whether it's right or wrong..

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.12.3 means 2(3)... just in a lazy format

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0its like this: (2x3)+(7x5) (8x2)+(7x0) (1x3)+(4x5) (1x8)+(4x0)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.16+35 = 41 16+0 = 16 3+20=17 8+0=8

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yup, I got the answer for a.. but, I'm stuck in b and c...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0do the same process in b

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how to explain the significance of this result??

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1b is the same process: [3 8] [2 7] [5 0] [1 4] 3.2+8.1 = 2 3.7+8.4= 53 5.2+0.1= 10 5.7+0.4=35

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1c; find the inverse... [7 8] 7.a+8.c=1 7.b+8.d=0 [5 2] 5.a+2.c=0 5.b+2.d=1

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0in part c its doing the nverse, do you know the proces of doing it?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1[a b] [c d] will be the inverse

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1the short cut is to flip and negate the 7 and 2 :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1it is the 7 and 2 right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1flip a d and negate b c

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok I've flipped a d and negate b c..

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1that is the inverse of A :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok thank you..! So after inverse, there's nothing else right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yup amistre got it,, theres nothing else
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