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determine-the-null-space-of-the-matrix-1-7-3-21-please-any-question-number-having-the-definition-of-linear-dependent-and-linearly-independent-vectors-

Question Number 95676 by Rio Michael last updated on 26/May/20 $$\mathrm{determine}\:\mathrm{the}\:\mathrm{null}\:\mathrm{space}\:\mathrm{of}\:\mathrm{the}\:\mathrm{matrix}\:\begin{pmatrix}{\mathrm{1}}&{−\mathrm{7}}\\{−\mathrm{3}}&{\mathrm{21}}\end{pmatrix} \\ $$$$\mathrm{please}\:\mathrm{any}\:\mathrm{question}\:\mathrm{number}\:\mathrm{having}\:\mathrm{the}\:\mathrm{definition}\:\mathrm{of} \\ $$$$\mathrm{linear}\:\mathrm{dependent}\:\mathrm{and}\:\mathrm{linearly}\:\mathrm{independent}\:\mathrm{vectors}? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Soit-f-E-F-une-application-P-E-est-l-ensemble-des-parties-de-E-Montrer-que-f-est-surjective-B-P-E-f-f-1-B-B-

Question Number 161205 by mathocean1 last updated on 14/Dec/21 $${Soit}\:{f}:\:{E}\rightarrow{F}\:{une}\:{application}.\: \\ $$$$\mathscr{P}\left({E}\right)\:{est}\:{l}'{ensemble}\:{des}\:{parties} \\ $$$${de}\:{E}.\:{Montrer}\:{que}: \\ $$$${f}\:{est}\:{surjective}\Leftrightarrow\forall\:{B}\:\in\:\mathscr{P}\left({E}\right),\:{f}\left({f}^{−\mathrm{1}} \left({B}\right)\right)={B}. \\ $$ Terms of Service Privacy Policy Contact:…

Soit-f-E-F-une-application-P-E-est-l-ensemble-des-parties-de-E-Montrer-que-f-est-injective-A-P-E-A-f-1-f-A-

Question Number 161204 by mathocean1 last updated on 14/Dec/21 $${Soit}\:{f}:\:{E}\rightarrow{F}\:,\:{une}\:{application}. \\ $$$$\mathscr{P}\left({E}\right)\:{est}\:{l}'{ensemble}\:{des}\:{parties} \\ $$$${de}\:{E}. \\ $$$${Montrer}\:{que}\:{f}\:{est}\:{injective}\:\Leftrightarrow\:\forall\:{A}\:\in\:\mathscr{P}\left({E}\right),\:{A}\:\subset\:{f}^{−\mathrm{1}} \left({f}\left({A}\right)\right) \\ $$ Terms of Service Privacy Policy Contact:…

Show-that-U-n-4n-1-7n-3-is-convergent-sequence-

Question Number 161168 by mathocean1 last updated on 13/Dec/21 $${Show}\:{that}\:{U}_{{n}} =\frac{\mathrm{4}{n}−\mathrm{1}}{\mathrm{7}{n}+\mathrm{3}}\:\:{is}\:{convergent}\: \\ $$$${sequence}. \\ $$ Commented by MJS_new last updated on 13/Dec/21 $$\frac{\mathrm{4}{n}−\mathrm{1}}{\mathrm{7}{n}+\mathrm{3}}=\frac{\mathrm{4}}{\mathrm{7}}−\frac{\mathrm{19}}{\mathrm{49}{n}−\mathrm{21}} \\ $$…

If-4-log-x-2y-4-log-x-2y-1-Minimum-value-of-x-y-is-

Question Number 161166 by naka3546 last updated on 13/Dec/21 $${If}\:\:\:^{\mathrm{4}} \mathrm{log}\:\left({x}+\mathrm{2}{y}\right)\:+\:^{\mathrm{4}} \mathrm{log}\:\left({x}−\mathrm{2}{y}\right)\:=\:\mathrm{1}\:. \\ $$$${Minimum}\:\:{value}\:\:{of}\:\:\mid{x}\mid\:−\:\mid{y}\mid\:\:\:{is}\:\:…\:? \\ $$ Answered by mr W last updated on 13/Dec/21 $$\left({x}+\mathrm{2}{y}\right)\left({x}−\mathrm{2}{y}\right)=\mathrm{4}…