Question

Which of the following is a perfect square number?

A. -1 B. 2 C. 4​

Answer 1

Answer:

C)4

Step-by-step explanation:

A) √-1 = i (complex number)

B) √2 = 1.414 (not a whole number so not perfect)

C) √4 = 2 ( whole number and also a perfect square)

Answer 2

Step-by-step explanation:

1 -1 2 - C .4........................