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)

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

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3 years 2021-08-31T05:02:48+00:00 1 Answers 1 views 0

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    0
    2021-08-31T05:04:45+00:00

    Answer:

    Step-by-step explanation:

    x=-1 is the counter example as ((-1)2)^(1/2)=1 and not -1.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )