Answer:
a. AB: 3 by 7
b. BA: N by N
c. A^TB: N by N
d. BC: 6 by 3
Step-by-step explanation:
Given



Required
The dimension of the following matrices
As a general rule:
For A * B to be successful, the columns in a must equal the rows in B
Using this rule, we have:

So:




The column numbers of B does not equal the row numbers of A.
Hence, BA does not exist

implies that:
If
, then

So:

The column numbers of A^T does not equal the row numbers of B.
Hence,
does not exist


Answer:
x= 95 duhhhhhhh lol jk but its 95
Step-by-step explanation:
Answer:
x ^ 3 − 11 x ^ 2 + X - x − 23
Step-by-step explanation:
you have to Simplify the expression. Hope that helped!! :)
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