1.

Evaluate:`int1/(sqrt((x-1)(x-2)))dx`

Answer» `I=int(1)/(sqrt(x^(2)-3x+2))dx`
`=int(1)/(sqrt(x^(2)-3x+(9)/(4)-(9)/(4)+2))dx`
`=int(1)/(sqrt((x-(3)/(2))^(2)-((1)/(2))^(2)))dx`
`=log|(x-(3)/(2))+sqrt((x-(3)/(2))^(2)-((1)/(2))^(2))|+C`
`=log|(x-(3)/(2))+sqrt(x^(2)-3x+2)|+C`


Discussion

No Comment Found

Related InterviewSolutions