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704. Show that the set of real numbers r which satisfy the inequality ∑_(k=1)^(70)k/(x-k)≥5/4 is a union of disjoint intervals, the sum of whose lengths is 1988.(IRL)4.试证:满足不等式∑_(k=1)^(10)k/(x-k)≥5/4的实数x的集合是互不相交的区间的并集,且这些区间长度的和...
real number Any of the rational numbers (which include the integers) or irrational numbers. Real numbers exclude imaginary numbers, found in complex numbers of the general form a+ bi where i=$$ \sqrt { - 1 } $$.although these do include a real component a. 相关知识点: 试题来源: ...
Which numbers are constructible? why? a.1.23456b.5π2c.41/3d.81/12e.(2+17)3/8 Constructible Number Definition: In geometry and variable based math, a real number r is constructible iff, given a line portion of unit length, a line section of length |r| can be built with a compas...
Write the set of all real numbers which cannot be written as the quotient of two integers ithe set-builder form.
If a, b, and c are real numbers, which of the following must be true? 返回 123456789101112131415161718 If a, b, and c are real numbers, which of the following must be true? A.a+(b+c)=(a+b)+c B.a-(b-c)=(a-b)-c C.a*(b*c)=(a*b)*c...
The mean is (4+6+8+17+x)/5=(35+x)/5.There are three possibilities for the median: it is either 6,8, or x. Let's start with 6. (35+x)/5=6 has solution x=-5, and the sequence is -5,4,6,8,17, which does have median 6, so this is a valid solution.Now let the ...
Let S be the set of ordered triples (x,y,z) of real numbers for which log_(10)(x+y)=z and log_(10)(x^2+y^2)=z+1. There are real numbers a and b such that for all ordered triples (x,y,z) in S we have x^3+y^3=a⋅10^(3z)+b⋅10^(2z). What is the valu...
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They are numbered 1 to 6, the odd figures corresponding to subparts of part A, the even numbers corresponding to subparts [...] daccess-ods.un.org 两部分不连接, 其中的分区按1 至 6 编号,奇数对应A 部分的分区,偶数对应 B 部分的分区。申 请区域是一处海床,其许可证以前由美利坚合众国...