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Category: Algebra

Question-125107

Question Number 125107 by peter frank last updated on 08/Dec/20 Commented by mr W last updated on 08/Dec/20 $${where}\:{did}\:{you}\:{get}\:{this}\:{question}? \\ $$$${it}\:{is}\:{wrong}.\:{for}\:{example}\:{m}=\mathrm{1},\:{n}=\mathrm{2}, \\ $$$${x}^{\mathrm{2}} +\mathrm{2}{x}+\mathrm{2}=\mathrm{0}\:{has}\:{no}\:{real}\:{roots}! \\…

solve-in-R-1-x-x-2-

Question Number 190625 by mnjuly1970 last updated on 07/Apr/23 $$ \\ $$$$\:\:\:\:\:\:\:\:\:\mathrm{solve}\:\mathrm{in}\:\:\:\mathbb{R}\:\:\:: \\ $$$$\:\:\:\:\:\:\:\:\lfloor\:\frac{\mathrm{1}}{{x}}\:\rfloor\:\:+\:\lfloor\:{x}\:\rfloor\:=\:\mathrm{2}\:\:\:\:\: \\ $$$$ \\ $$ Answered by mr W last updated on…

1-4-1-4-1-8-

Question Number 59552 by hhghg last updated on 11/May/19 $$\frac{\mathrm{1}}{\mathrm{4}}+\left(\frac{\mathrm{1}}{\mathrm{4}}+\frac{\mathrm{1}}{\mathrm{8}}\right) \\ $$ Answered by ajfour last updated on 11/May/19 $$\frac{\mathrm{2}}{\mathrm{8}}+\frac{\mathrm{2}}{\mathrm{8}}+\frac{\mathrm{1}}{\mathrm{8}}=\frac{\mathrm{5}}{\mathrm{8}} \\ $$ Terms of Service…

9-5-4-5-3-

Question Number 59550 by hhghg last updated on 11/May/19 $$\mathrm{9}+\left(\mathrm{5}×\mathrm{4}+\mathrm{5}^{\mathrm{3}} \right) \\ $$ Answered by ajfour last updated on 11/May/19 $$\mathrm{20}+\mathrm{125}+\mathrm{9}=\mathrm{145}+\mathrm{9}=\mathrm{154} \\ $$ Terms of…

1-5-i-i-7-

Question Number 59549 by hhghg last updated on 11/May/19 $$\frac{\mathrm{1}}{\mathrm{5}}×\mathrm{i}\:\:\mathrm{i}=\mathrm{7} \\ $$ Answered by ajfour last updated on 11/May/19 $$\mathrm{11i}=\mathrm{35} \\ $$$$\mathrm{i}=\frac{\mathrm{35}}{\mathrm{11}} \\ $$ Commented…

4-t-c-t-3-c-6-

Question Number 59547 by hhghg last updated on 11/May/19 $$\mathrm{4}+\mathrm{t}×\mathrm{c}\:\mathrm{t}=\mathrm{3}\:\mathrm{c}=\mathrm{6} \\ $$ Answered by Forkum Michael Choungong last updated on 11/May/19 $$\mathrm{4}\:+\:{t}\:×\:\mathrm{6}{t}=\mathrm{3} \\ $$$$\mathrm{6}{t}^{\mathrm{2}} +\mathrm{1}=\mathrm{0}…

Montrer-que-1-c-2-a-2-b-2-2-rayon-r-c-1-2-a-b-2-2-

Question Number 190611 by a.lgnaoui last updated on 07/Apr/23 $$\mathrm{Montrer}\:\mathrm{que}: \\ $$$$\mathrm{1}\bullet\boldsymbol{\mathrm{c}}^{\mathrm{2}} =\boldsymbol{\mathrm{a}}^{\mathrm{2}} +\boldsymbol{\mathrm{b}}^{\mathrm{2}} \\ $$$$\mathrm{2}\bullet\:\mathrm{rayon}\:\:\:\:\:\boldsymbol{\mathrm{r}}=\frac{\boldsymbol{\mathrm{c}}}{\mathrm{1}+\sqrt{\mathrm{2}}}−\frac{\boldsymbol{\mathrm{a}}+\boldsymbol{\mathrm{b}}}{\mathrm{2}+\sqrt{\mathrm{2}}} \\ $$$$ \\ $$ Commented by a.lgnaoui last updated…