作者Eliphalet (搞边样衰边样)
站内trans_math
标题Re: [考古]求极限
时间Sun Jul 6 22:06:52 2008
※ 引述《reideen107 (理想一直都在)》之铭言:
: 1.Find the limit of the following questions,and give your reason.
: (1) lim |sin(x-2)| / x-2
: x→2
当 2 < x < 3 , |sin(x-2)|/(x-2) = sin(x-2)/(x-2)
当 1 < x < 2 , |sin(x-2)|/(x-2) = - sin(x-2)/(x-2)
=> 极限不存在
: (2) lim (x^1/3 (x+1)^2/3 -x)
断头了
: 另外
: 2. Find the curve of r=4cosθ
: 请问这题是求面积吗?
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1F:推 reideen107:噗@@....第二题是是x趋近无穷大 118.171.118.90 07/06 23:30