1.which of the following is an example of a perfect square number?
A.√-100
B.√-10
C.√100
D.√1,000
2.which of the following are the respective principal roots of √1,√4,√9?
A.-1,-2,-3
B.1,-2,3
C.-1,2,3
D.1,2,3
3.what is the number whose principal root is -8?
A.-512
B.-64
C.64
D.512
4.what is the principal root of ³√-216?
A.-3
B.-4
C.-5
D.-6
5.what is the number whose principal root is 16?
A.32
B.64
C.25
D.512​