Matrix

Multiple Choice

The Order of the Matrix on the side is ....

• $$3\times3$$  

• $$4\times2$$  

• $$2\times4$$  

• $$3\times4$$  

• $$4\times3$$  

Multiple Choice

The elements in the 2nd row of the 1st column are ....

• 5 

• 8 

• 7 

• -2 

• 3 

Multiple Choice

$$a_{23}=$$   ....

• 5 

• 8 

• 7 

• -2 

• 3