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Use A A=[-2,-1,5,9]andB=[(0,-5),(3,-2),...

Use A `A=[-2,-1,5,9]andB=[(0,-5),(3,-2),(4,0),(-6,1)]`for question 4
The product AB =

A

`[(0,10),(-3,2),(20,0),(-54,9)]`

B

`[(-37,21)]`

C

`[(10),(-2),(20),(-45)]`

D

`[(0),(6),(0),(-54)]`

Text Solution

Verified by Experts

The correct Answer is:
B
By definition, `AB={:[((-2)(0)+(-1)(3)+(5)(4)+(9)(-6)),((-2)(-5)+(-1)(-2)+(5)(0)+(9)(1))]:}=[-23" "21]`.
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