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Evaluate the following limit : limx→3[x2+2x-15x2-5x+6]

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प्रश्न

Evaluate the following limit :

`lim_(x -> 3) [(x^2 + 2x - 15)/(x^2 - 5x + 6)]`

योग
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उत्तर

`lim_(x -> 3) [(x^2 + 2x - 15)/(x^2 - 5x + 6)]`

= `lim_(x -> 3) ((x + 5)(x - 3))/((x - 2)(x - 3))`

= `lim_(x -> 3) (x + 5)/(x - 2)    ...[(because x -> 3"," therefore x ≠ 3),(therefore x + 3 ≠ 0)]`

= `(lim_(x -> 3) (x + 5))/(lim_(x -> 3) (x - 2))`

= `(3 + 5)/(3 - 2)`

= 8

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Limits - Exercise 7.2 [पृष्ठ १४१]

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