If l, m and n are real numbers such that...

If l, m and n are real numbers such that `l^(2)+m^(2)+n^(2)=0`, then
`|(1+l^(2),lm,l n),(lm,1+m^(2),mn),(l n,mn,1+n^(2))|` is equal to a)0 b)1 c)`l+m+n+2` d)`2(l+m+n)+3`

A

0

B

1

C

`l+m+n+2`

D

`2(l+m+n)+3`

Verified by Experts

The correct Answer is:

B

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