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If A=[(3,-1),(2,0)] and B=[(2,-5),(3,1)]...

If `A=[(3,-1),(2,0)]` and `B=[(2,-5),(3,1)]` then sum of diagonal elements of `(A+B)` is

A

`-6`

B

`6`

C

`3`

D

`2`

Text Solution

Verified by Experts

The correct Answer is:
B
Now, `A+B=[(3,-1),(2,0)]+[(2,-5),(3,1)]=[(5,-6),(5,1)]`
`:.` The sum of diagonal element of `A+B=5+1=6`
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