1.己知f(X)=7(0.4)^×求下列各式的值
a.f(-1)
b.f(0)
c. f(2)
d.(3.4)
下列各式的值 用中文作答(20分)
2008-11-30 5:17 am
回答 (1)
2008-11-30 7:34 am
✔ 最佳答案
1.a.
f(-1)
= 7(0.4)-1
= 17.5
b.
f(0)
= 7(0.4)0
= 7
c.
f(2)
= 7(0.4)2
= 1.12
d.
f(3.4)
= 7(0.4)3.4
= 0.3105 (準確至 4 位有效數字)
=
收錄日期: 2021-04-23 23:07:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081129000051KK01827