Interactive practice questions
| Consider $A$A$=$= |
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and $B$B$=$= |
|
. |
Is the product $AB$AB defined?
Yes
A
No
B
Easy
< 1min
| Consider $A$A$=$= | $-7$−7 | $-3$−3 | $-1$−1 | . | ||
| $5$5 | $7$7 | $-6$−6 |
If $A$A is to be multiplied by $B$B, a column matrix, what are the dimensions of $B$B?
Easy
< 1min
If $B$B is a $5\times2$5×2 matrix and the product $AB$AB is a $4\times2$4×2 matrix, what are the dimensions of $A$A?
Easy
< 1min
| A matrix calculation of $A=BC$A=BC resulted in $A$A$=$= |
|
. |
Easy
< 1min
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