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> 4的平方根是(▲)A.2B.-2C.±2D.4-八年级数学
4的平方根是(▲)A.2B.-2C.±2D.4-八年级数学
题目简介
4的平方根是(▲)A.2B.-2C.±2D.4-八年级数学
题目详情
4的平方根是( ▲ )
A.2
B.-2
C.±2
D.4
题型:单选题
难度:中档
来源:不详
答案
C
分析:首先根据平方根的定义求出4的平方根,然后就可以解决问题.
解答:解:∵±2的平方等于4,
∴4的平方根是:±2.
故选C.
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题目简介
4的平方根是(▲)A.2B.-2C.±2D.4-八年级数学
题目详情
答案
解答:解:∵±2的平方等于4,
∴4的平方根是:±2.
故选C.