内容出处: | 《北洋周刊》 期刊 |
唯一号: | 020020020210013148 |
颗粒名称: | MATHEMATICS天津 |
分类号: | G424.79 |
页数: | 1 |
摘要: | 1.If a zone of one base is the mean proportional between the remainde of the surface of the sphers and the total surface of the sphere,find the distance of the base of the zone from the centre of the sphere.2.The number of combinations of n+2 thinge,taken 4 at a time,is to thenumber of combinations of n things taken 2.at a time, as 11 is' to 1.Find n.3.An observer in the tirst place stations himself at a distance of a feet from a column standing upon a mound. |
关键词: | 试题 入学考试 本科 |