An ordered pair (alpha, beta) for which ...

An ordered pair `(alpha, beta)` for which the system of linear equations `(1+alpha)x+betay+z=2`, `alphax+(1+beta)y+z=3` and `alphax+betay+2z=2` has unique solution is: (a) (2,4) (b) (-3,1) (c) (-4,2) (d) (1,-3)

A

(2,4)

B

(-4,2)

C

(1,-3)

D

(-3)

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The correct Answer is:

A

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