How do you find the limits of
a) lim x->2- f(x)=(x+5)/(x-2)
b) lim x->15 ((sq.rt. of(x+10))-5)/(x-15)
calculus limits
2010-10-30 4:53 pm
回答 (3)
2010-10-31 6:39 am
✔ 最佳答案
Check your first question.2010-10-30 10:48:43 補充：
when x approaches 2, the denominator approaches zero while the numerator approaches +7 which is finite. SO there is not limit.
2010-10-30 22:39:59 補充：
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圖片參考：http://img220.imageshack.us/img220/5194/67015088.png
2010-10-30 22:40:07 補充：
http://img220.imageshack.us/img220/5194/67015088.png
2010-10-30 8:41 pm
If the equation tends to +/- infinity, as x tends to a, for a is a constant,
then limit does not exist.
then limit does not exist.
2010-10-30 6:28 pm
Is there a problem for the first question? I mean the limit of the equation when x approaches to 2 from the left.
2010-10-30 11:35:27 補充：
Can you explain why there is no limit?I thought the limit is negative infinity.....
2010-10-30 11:35:27 補充：
Can you explain why there is no limit?I thought the limit is negative infinity.....
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