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यदि (a^2-1)x^2+(a-1)x+a^2-4a+3=0; x मे...

यदि `(a^2-1)x^2+(a-1)x+a^2-4a+3=0;` `x` में एक सर्वसमिका है तब, `a=` .

A

`-1`

B

`1`

C

`3`

D

`-1,1,3`

Text Solution

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The correct Answer is:
B
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