【数学讨论101-200】4.22起酥雪讨论稿 更新至200, 5.3修改 113

Dural

今天戰完Q49
197題答案構主寫的沒錯

Shinny2015

小青鱼 发表于 2016-5-2 13:44
你这个方程默认了船要不然坐6个人，要不然坐1个人。
n=16，k=7的情况下，还有一条船富裕，这显然不能满足 ...

谢谢！明白了！

Shinny2015

pluviophile 发表于 2016-5-2 14:24
答案应该是A哈，详看前面几位仁兄的评论~

谢谢 看到啦~~

huangbb3131

What about no.171?

S1=0, S2=-1/4, S3=-2/9, then S1+S2+S3=-17/36, which is between 0 and -1/2??

Julia143

huangbb3131 发表于 2016-5-3 00:49
What about no.171?

S1=0, S2=-1/4, S3=-2/9, then S1+S2+S3=-17/36, which is between 0 and -1/2??

同意！               

Julia143

huangbb3131 发表于 2016-5-3 00:49
What about no.171?

S1=0, S2=-1/4, S3=-2/9, then S1+S2+S3=-17/36, which is between 0 and -1/2??

同意！               

Julia143

huangbb3131 发表于 2016-5-3 00:49
What about no.171?

S1=0, S2=-1/4, S3=-2/9, then S1+S2+S3=-17/36, which is between 0 and -1/2??

同意！               

Julia143

huangbb3131 发表于 2016-5-3 00:49
What about no.171?

S1=0, S2=-1/4, S3=-2/9, then S1+S2+S3=-17/36, which is between 0 and -1/2??

the number i picked was an example. No matter what number you picked. The answer is <0

huangbb3131

Julia143 发表于 2016-5-3 00:57
the number i picked was an example. No matter what number you picked. The answer is

Thanks for the clarification! 我就纯就事论事了，并没说n1=? 所以不能假设n1=1～

peach_gill

我又糊涂了，前面看157题的时候还没觉得有问题，现在看又觉得有问题，
条件二，说2^m=3^n, 2^m是偶数，3^n是奇数，如果m=n=0的话，那2^m＝3^n＝1了啊，左边就不是偶数了。。。感觉这个条件就有问题，相等的话怎么可能左边是偶数右边是奇数