10.6伤心放大狗

几许VV

给我个高分吧 发表于 2018-10-7 10:24
第一题实数根的那题，我觉得可以看成两个函数的图像交点个数，一个是y=x^3, 另一个函数y=-2x^2+x-4，化成顶 ...

同意！               

ScarlettDeng

楼主，你说的逻辑题是这一道吗？

78.        Kitchen magazine plans to license the use of its name by a line of cookware.  For a magazine, licensing the use of its name for products involves some danger, since if the products disappoint consumers, the magazine's reputation suffers, with consequent reductions in circulation and advertising.  However, experts have evaluated the cookware and found it superior to all other cookware advertised in Kitchen.  Therefore, Kitchen can collect its licensing fee without endangering its other revenues.
The argument above assumes which of the following?
(A)        No other line of cookware is superior to that which will carry the Kitchen name.
(B)        Kitchen will not license the use of its name for any products other than the line of cookware.
(C)        Makers of cookware will not find Kitchen a less attractive advertising vehicle because the magazine's name is associated with a competing product.
(D)        Consumers who are not regular readers of Kitchen magazine will be attracted to the cookware by the Kitchen name.
(E)        Kitchen is one of the most prestigious cooking-related magazines.

OLIVIAHAN777

感谢分享！               

加油RP

“x^3+2x^2-x+4=0 有几个实数根 不会分解...”

这道我也碰到类似的啦。
我的题目是x^3-4x^2+x-4=0 先判断x=4时等式成立，再用多项式除法的（x-4）（x^2+1），所以1个解

jade4059

p被4除后的余数？
（1）p^2被4除余1（2）p被2除余1
这道题怎么解

应该是e吧，条件二是奇数，但是任何奇数都满足条件一。奇数除4的话，余数可以是1，3.

给我个高分吧

Cynthia_1 发表于 2018-10-7 11:14
我算的是两个交点。化成x^3的图像和一个一元二次方程的图像的交点。是两个 ...

请问可以传图看一下吗？我怎么画都是一个交点耶...谢谢！！

Cynthia_1

给我个高分吧 发表于 2018-10-9 20:17
请问可以传图看一下吗？我怎么画都是一个交点耶...谢谢！！

我这一题做错了。。就不误导你了。答案是一个解啦。jj第95题有图你可以去看一下哦