问答题
计算题
求y=(x2+8x+15)分之一的定义域。
【参考答案】
x2+8x+15
(X+3)(x+5)≠0;
所以定义域是x≠-3且x≠-5.......
(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)
点击查看答案
相关考题
-
问答题
已知E1=90V,E2=60V,R1=69,R2=129,R3=369,试用支路电流法求各支路电流。 -
问答题
试分析如何评价幼儿园区角活动。 -
单项选择题
The phrase " to urge people to abide by Christian doctrines and to seek salvation through constant struggles with their own weaknesses and all kinds of social evils ”may well sum up the implied meaning of ().
A.Gulliver's Travels
B.The Rape of the Lock
C.Robinson Crusoe
D.The pilgrim's Progres
