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Question Number 180713 by Mastermind last updated on 16/Nov/22

Commented by Rasheed.Sindhi last updated on 16/Nov/22

$$\mathrm{b})\mathrm{\&}\mathrm{d})aresame+4=4$$$$\sqrt{16}=+4or\sqrt{16}=4$$

Commented by Frix last updated on 16/Nov/22

$$\sqrt{16}=\pm 4\Rightarrow \sqrt{\sqrt{16}}=\sqrt{\pm 4}=\{\begin{array}{l}\pm 2\\ \pm 2\mathrm{i}\end{array}$$$$\Rightarrow$$$$\sqrt{\sqrt{\sqrt{256}}}=?$$$${\mathrm{That}}^{\prime }\mathrm{s}\mathrm{not}\mathrm{Mathematics}\mathrm{but}\mathrm{Weirdemathics}$$

Commented by Mastermind last updated on 16/Nov/22

$${\mathrm{What}}^{\prime }\mathrm{s}\mathrm{the}\mathrm{correct}\mathrm{answer},\mathrm{actually}?$$

Commented by Frix last updated on 16/Nov/22

$$\sqrt{16}=4$$

Commented by MJS_new last updated on 16/Nov/22

$$\mathrm{I}\mathrm{have}\mathrm{explained}\mathrm{this}\mathrm{several}\mathrm{times}\mathrm{before},$$$${\mathrm{it}}^{\prime }\mathrm{s}\mathrm{annoying}...$$$$\sqrt{16}\mathrm{is}\mathrm{a}\mathrm{simple}\mathrm{calculation}.\sqrt{16}=4$$$$x^2=16\mathrm{is}\mathrm{not}\mathrm{a}\mathrm{calculation},\mathrm{here}\mathrm{we}\mathrm{are}$$$$\mathrm{searching}\mathrm{all}\mathrm{possible}\mathrm{numbers}x\mathrm{which}$$$$\mathrm{give}16\mathrm{when}\mathrm{squared}.$$$$x^2=16\Rightarrow x=\pm \sqrt{16}=\pm 4$$$$\mathrm{as}\mathrm{you}\mathrm{can}\mathrm{see}\mathrm{the}‘‘{\pm }^{″}\mathrm{is}\mathrm{not}\mathrm{coming}\mathrm{from}$$$$\mathrm{the}\mathrm{root},\mathrm{it}\mathrm{comes}before\mathrm{the}\mathrm{root}$$$$x^2=16\Rightarrow x=\{\begin{array}{l}-\sqrt{16}=-4\\ +\sqrt{16}=+4=4\end{array}$$$$\mathrm{if}\sqrt{16}=\pm 4\Rightarrow \sqrt{16}+\sqrt{16}=\{\begin{array}{l}-8\\ 0\\ 8\end{array}$$

Commented by Rasheed.Sindhi last updated on 16/Nov/22

$$@Mastermind,seealsocomment$$$$\text{You can't use 'macro parameter character \#' in math mode}$$$$Ifyouhavehadreadityouneednot$$$$askthisquestion!!!$$

Commented by Mastermind last updated on 17/Nov/22

$$\mathrm{Thank}\mathrm{you}\mathrm{guys}$$

Answered by Socracious last updated on 19/Nov/22

$$\sqrt{16}=4\mathrm{is}\mathrm{correct}$$

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