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Evaluate int (dx)/((x-1)sqrt(x^(2)+x+1)...

Evaluate `int (dx)/((x-1)sqrt(x^(2)+x+1))`.

A

(a)`sqrt(-x^(2)+3x-2)=u`

B

(b)`sqrt(-x^(2)+3x-2)=(ux sqrt(2))`

C

(c)`sqrt(-x^(2)+3x-2)=u(1-x)`

D

(d)`sqrt(-x^(2)+3x-2)=u(x+2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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