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selenamalter
 one year ago
which product is undefined?
selenamalter
 one year ago
which product is undefined?

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uri
 one year ago
Best ResponseYou've already chosen the best response.0i don't get your question?

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

uri
 one year 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
 one year 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
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.2dw:1371047591398:dw

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

amistre64
 one year 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
 one year 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
 one year 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
 one year 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
 one year 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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