Question

`lim_(x->1) (x^2 - 3x + 2)/(x^2 - 1)` = ?

पर्याय

• 0

• `(- 1)/2`

• `(- 7)/3`

• `(- 5)/2`

Answer 1

`(- 1)/2`

Explanation:

`lim_(x->1) (x^2 - 3x + 2)/(x^2 - 1)`

`= lim_(x->1) ((x - 1)(x - 2))/((x - 1)(x + 1))`

`= lim_(x->1) (x - 2)/(x + 1)`

`= (- 1)/2`