配套习题- 平方根与立方根 -【青果学院】

1/5单选题

难度：

1.

若a,b是实数，且,则a+b的值是（）

A	3或-3
B	3或-1
C	-3或-1
D	3或1

正确答案：Qg==

PGRpdj48aW1nIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOEIvMjQvckJBQ0ZGTS1rWWJBdHRvOUFBQU9zRk5HVnljNDgwLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC84Qi8yNC9yQkFDRkZNLWtZYkF0dG85QUFBT3NGTkdWeWM0ODAucG5nIiBhbHQ9IiIgc3R5bGU9IndpZHRoOiAyNTdweDsgaGVpZ2h0OiAyMTBweDsiPjxicj48L2Rpdj4=

2/5单选题

难度：

2.

下列说法中不正确的是（）

A
B
C
D

正确答案：QQ==

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

3/5单选题

难度：

3.

下列说法中不正确的是（）

A	9的算术平方根是3
B
C	27的立方根是±3
D	立方根等于-1的实数是-1

正确答案：Qw==

PGRpdj48cCBhbGlnbj0ibGVmdCI+6Kej77yaMjfnmoTnq4vmlrnmoLnmmK8zPC9wPjwvZGl2Pg==

4/5单选题

难度：

4.

的平方根是（）

A	±8
B	±4
C	±2
D

正确答案：Qw==

PGRpdj48aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvOTIvckJBQ0UxTU1iVGVELXJsSEFBQUZVMERGNVJrMzcwLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yMy85Mi9yQkFDRTFNTWJUZUQtcmxIQUFBRlUwREY1UmszNzAucG5nIiBhbHQ9IiIgc3R5bGU9IndpZHRoOiAzMzVweDsgaGVpZ2h0OiA1NXB4OyI+PC9kaXY+

5/5单选题

难度：

5.

已知非零实数满足，则的值为（）

A	1
B	2
C	3
D	4

正确答案：QQ==

PGRpdj48aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMTEvMEQvckJBQ0ZGTVMtUGFBLTJIVUFBQVBqR3ZUeDNZNTUzLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8xMS8wRC9yQkFDRkZNUy1QYUEtMkhVQUFBUGpHdlR4M1k1NTMucG5nIiBhbHQ9IiIgc3R5bGU9IndpZHRoOiAzMzZweDsgaGVpZ2h0OiA5OHB4OyI+PC9kaXY+