Question
Question: The value of\(\int _ { 2 } ^ { 3 } \frac { x + 1 } { x ^ { 2 } ( x - 1 ) } d x\)is...
The value of∫23x2(x−1)x+1dxis
A
2log2−61
B
log916−61
C
log34−61
D
log916+61
Answer
log916−61
Explanation
Solution
A(x−1)+B(x)(x−1)+C(x2)=x+1
Put A=−1,B=−2,C=2
⇒ I=−∫23x2dx−2∫23xdx+2∫23x−1dx
⇒ I=[x1]23−2[logx]23+2[log(x−1)]23
⇒ I=log916−61.