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Which of the following expression is equivalent
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01 Jul 2021, 03:46
01 Jul 2021, 03:46
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Question Stats:
72% (00:59) correct
27% (00:26) wrong based on 29 sessions
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Which of the following expression is equivalent to \(\sqrt{400}\) ?
A. \(\sqrt{200} +\sqrt{200}\)
B. \(100 \sqrt{4}
\)
C. \((\sqrt{20})^2\)
D. \(4 \sqrt{100}
\)
E. \(200\)
A. \(\sqrt{200} +\sqrt{200}\)
B. \(100 \sqrt{4}
\)
C. \((\sqrt{20})^2\)
D. \(4 \sqrt{100}
\)
E. \(200\)
Re: Which of the following expression is equivalent
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01 Jul 2021, 03:52
01 Jul 2021, 03:52
1
\(\sqrt{400}\) \(= 20 =\) \((\sqrt{20})^2\)
Answer C
Answer C
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Re: Which of the following expression is equivalent
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26 Jul 2025, 01:46
26 Jul 2025, 01:46
1
\(\sqrt{400}\) = \(\sqrt{20^2}\) = 20
A. \(\sqrt{200} +\sqrt{200}\) = 2 * \(\sqrt{200}\) = 2 * \(\sqrt{10^2 * 2}\) = 20 * \(\sqrt{2}\) ≠ 20
B. \(100 \sqrt{4}\) > 20 => ≠ 20
C. \((\sqrt{20})^2\) = 20
D. \(4 \sqrt{100}\) = 4 * 10 = 40 ≠ 20
E. \(200\) ≠ 20
So, Answer will be C
Hope it helps!
Playlist on Solved Problems on Roots here
Watch the following video to MASTER Roots
A. \(\sqrt{200} +\sqrt{200}\) = 2 * \(\sqrt{200}\) = 2 * \(\sqrt{10^2 * 2}\) = 20 * \(\sqrt{2}\) ≠ 20
B. \(100 \sqrt{4}\) > 20 => ≠ 20
C. \((\sqrt{20})^2\) = 20
D. \(4 \sqrt{100}\) = 4 * 10 = 40 ≠ 20
E. \(200\) ≠ 20
So, Answer will be C
Hope it helps!
Playlist on Solved Problems on Roots here
Watch the following video to MASTER Roots
