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If a ,b ,c are three distinct real numbe...

If `a ,b ,c` are three distinct real numbers in G.P. and `a+b+c=x b ,` then prove that either `x<<-1orx>>3.`

A

`x le -1 or x ge 3`

B

`x lt -1 or x gt 3`

C

`x le -1 or x gt 3`

D

`x lt -3 or x gt 2`

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The correct Answer is:
B
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