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If ({:(2,3),(4,1):})xx({:(5,-2),(-3,1):}...

If `({:(2,3),(4,1):})xx({:(5,-2),(-3,1):})=({:(1,-1),(17,lambda):})`, then what is `lambda` equal to ?

A

7

B

-7

C

9

D

-9

Text Solution

Verified by Experts

The correct Answer is:
B
`((2,3),(4,1))xx((5,-2),(-3,1))=((1,-1),(17,lambda))`
`((1,-1),(17,-7))=((1,-1),(17,lambda))`
`lambda=-7`
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