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If a, b, c are in G.P then the value of ...

If `a, b, c` are in G.P then the value of the determinant `Delta= [[a, b, ax+by],[b ,c ,b x+c y],[a x+b y, b x+c y, 0]]` is

A

zero

B

positive

C

negative

D

`b^2+a c`

Text Solution

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The correct Answer is:
C
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