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For what values of 'a' , the system of ...

For what values of 'a' , the system of equations `x+y+z=1, 2x+3y+2z=2, ax+ay+2az=4` will have a unique solution ?

A

For `a=0` only

B

For all ` a in R-{0}`

C

For all `a in Q`

D

For all a `cancelin N`

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The correct Answer is:
B
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