1. evaluate the following limits.
(lim x > - ∞)
(2^x - 2^ -x)/(2^x + 2^ -x)
Ans= -1
2. find a quadratic functon f(x) which satisfies the following conditions.
f(x) - f(x-1)= 4x,f(1) =4
Ans= 2x^2 +2x
amaths-limits
2007-11-09 2:14 am
回答 (1)
2007-11-09 2:49 am
參考: ME
收錄日期: 2021-04-13 14:22:56
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