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If a system of three linear equations x+...

If a system of three linear equations `x+4a y+a=0,x+3b y+b=0,a n dx+2c y+c=0` is consistent, then prove that `a ,b , c` are in H.P.

A

AP

B

GP

C

HP

D

None of these

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The correct Answer is:
C
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