1.

यदि `x+1/x=3` है तो `(3x^(2)-4x+3)/(x^(2)-x+1)` का मान ज्ञात करें।A. `4/3`B. `3/2`C. `5/2`D. `5/3`

Answer» Correct Answer - C
`k+1/x=3`
`(3x^(2)+3-4x)/(x^(2)+1-x)=((3x^(2))/x+3/x-4)/((x^(2))/x+1/x-x/x)=(3(x+1/x)-4)/((x+1/x)-1)`
`=(3xx3-4)/(3-1)=(9-4)/(3-1)=5/2`


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