The positive square root of the 4 is 2，4的正的平方根是2。在初中范围只学到实数的情况下，一个数的平方根只有三种情况：1、一个正数的平方根有两个，它们互为相反数，其中正的那个数为算术平方根 2、0的平方根（或者说算术平方根）只有一个，是0 3、负数没有算术平方根，是因为在实数范围...
extraction of the square root 开方 square root extractor 开方器 square root law 平方根律 root mean square 均方根 root sum square 和的平方根 相似单词 root mean square 均方根,均方根 positive a. 1.确定的;;确实的 2.确信的;有自信的(+of/about)(+that) 3.绝对的 4.积极的,建设性...
百度试题 结果1 题目【题目】The positive square root of a positive number a is r, and its cube root is y. Write analgebraic expression in.r to represent y. 相关知识点: 试题来源: 解析 【解析】y=√[3](x^2) 反馈 收藏
题目 If y is positive, then the square root of the square root of the square root of ? is y( ). A. y3 B. y6 C. y8 D. y16 相关知识点: 试题来源: 解析C Since y>0, we know that √y8=y4,√y4=y2,and√y2=y , The correct answer is choice C....
百度试题 结果1 题目6 ThepositivesquareroOtof⋅[3]125→is 相关知识点: 试题来源: 解析 6 √5 反馈 收藏
aNote further that when we took square roots, we only took the positive square root of 4. But 4 has a negative square root, namely, −2. So we can get a second solution to the equation by solving 5 – x = −2, which gives us x = 7. Our equation thus has two solutions, ...
1If the positive square root of a natural number is a , then the positive square root of a naturalnumber 2 greater than this natural number is ( ).(A) √(a+2)B) ±√(a+2)C) √(a^2+2)D) ±√(a^2+2) 2If the positive square root of a natural number is a , then the...
The following sections are included:IntroductionUse of the Canonical RepresentationA Formula from Control TheoryUpper and Lower BoundsDynamic ProgrammingDiscussionSquare RootsCommutivityBoundsGeneral MatricesBibliography and Comments#Introduction#Use of the Canonical Representation#A Formula from Control Theory#...
1.for what positive number is the square root of the number the same as the number divided by 40?2.what is the total number of right angles formed by the edges of a cube?以上两题请帮忙翻译一下,我觉得按我的理解怎么也做不出正确答案3.the square of x is equal to 4 times the square...
SY II. Fill in the blanks5 The square roots of 9 are6 The positive square root of 125 is .7 The cube root of a real number x is -3; then the square roots of 9-x are8 The square of a real number x is 49; then the 4th roots of 9+x are.9 If the expression x4+(-x)*...