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selenamalter
 2 years ago
which product is undefined?
selenamalter
 2 years ago
which product is undefined?

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selenamalter
 2 years ago
Best ResponseYou've already chosen the best response.0A. AB B. BA C. DB D. CD would these help

uri
 2 years ago
Best ResponseYou've already chosen the best response.0wait so like you're asking me to slove all this and tell you from this which one's are impossibe?

selenamalter
 2 years ago
Best ResponseYou've already chosen the best response.0I think so :/ you see, the problem is, i dont know how to do it

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.2matrix multiplication requires that the number of columns in the first one, matches the number of rows in the second one

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.2dw:1371047591398:dw

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.2does B have a different number of columns then D has rows?

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.2essentially, we need to be able to pair up vectorsdw:1371047676408:dw if we cant pair up the vectors, we can perform the operations

giolefpatceid
 2 years ago
Best ResponseYou've already chosen the best response.1For each multiplication, count the number of columns for the first table and the number of rows for the second table. If they are equal, the multiplication is valid. Otherwise the product it is undefined.

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.2if we notate this in row,column format A=3,2 B=2,2 C=3,1 D=1,2 (r,c)(r,c)   these numbers have to equal

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.2CD = 3,1 1,2 is valid DB = 1,2 2,2 is valid AB = 3,2 2,2 is valid BB = 2,2 2,2 is valid i think thats all the valid ones

giolefpatceid
 2 years ago
Best ResponseYou've already chosen the best response.1For the AB multiplication. A has 2 columns, B has 2 rows, so the multiplication is valid. You do the same thing for the rest.
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