hi, can someone help pls! Which of the following is a counterexample for the claim that √x^2 = x ?

a) x=1
b) x=-1
c) x=0
d) x=2

Question

hi, can someone help pls! Which of the following is a counterexample for the claim that √x^2 = x ?   a) x=1  b) x=-1  c) x=0  d) x=2

danthu · Answer

Answer:    Step-by-step explanation:  x=-1 is the counter example as ((-1)2)^(1/2)=1 and not -1.