Question Number 74817 by peter frank last updated on 01/Dec/19 Answered by mr W last updated on 03/Dec/19 $${parallel}\:{chords}: \\ $$$${y}={mx}+{k} \\ $$$${x}\left({mx}+{k}\right)={c}^{\mathrm{2}} \\ $$$${mx}^{\mathrm{2}}…
Question Number 74819 by Raxreedoroid last updated on 01/Dec/19 $$\mathrm{Expand}\:\Sigma \\ $$$$\frac{\mathrm{4}{n}−\mathrm{1}}{\mathrm{3}}+\frac{\mathrm{2}}{\mathrm{3}}\underset{{k}=\mathrm{1}} {\overset{{n}−\mathrm{1}} {\sum}}{cos}\left(\mathrm{120}{k}\right) \\ $$ Commented by mathmax by abdo last updated on 01/Dec/19…
Question Number 9250 by tawakalitu last updated on 25/Nov/16 Commented by sou1618 last updated on 26/Nov/16 Commented by tawakalitu last updated on 26/Nov/16 $$\mathrm{Wow}.\:\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir}. \\…
Question Number 9189 by raj bunsha last updated on 22/Nov/16 $${x}+{y}+{z}=−\mathrm{6} \\ $$$${xy}+{xz}+{yz}=\mathrm{11} \\ $$$${xyz}=−\mathrm{6} \\ $$$${then}\:{wbat}\:{are}\:{thd}\:{value}\:{of}\:{x}\:{yand}\:{z} \\ $$ Answered by mrW last updated on…
Question Number 74622 by Raxreedoroid last updated on 27/Nov/19 $$\mathrm{Expand} \\ $$$$\mathrm{1}+\frac{\mathrm{2}}{\mathrm{3}}\centerdot\left(\underset{{k}=\mathrm{1}} {\overset{{n}−\mathrm{1}} {\sum}}\left[{cos}\left(\frac{\mathrm{2}\pi}{\mathrm{3}}{x}\right)\right]+\mathrm{2}{n}−\mathrm{2}\right) \\ $$ Commented by Raxreedoroid last updated on 28/Nov/19 $$\mathrm{No}\:\mathrm{its}\:\mathrm{just}\:\mathrm{to}\:\mathrm{clarify}\:\mathrm{whats}\:\mathrm{inside}\:\mathrm{sigma} \\…
Question Number 74617 by Raxreedoroid last updated on 27/Nov/19 $$\mathrm{Expand} \\ $$$$\mathrm{1}+\underset{{k}=\mathrm{1}} {\overset{{n}−\mathrm{1}} {\sum}}\left[\mid\frac{\mathrm{2}\sqrt{\mathrm{3}}}{\mathrm{3}}{sin}\left(\mathrm{120}{x}\right)\mid+\mathrm{2}\right] \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 9041 by tawakalitu last updated on 16/Nov/16 Commented by sou1618 last updated on 16/Nov/16 $$ \\ $$$$ \\ $$$$\begin{pmatrix}{}&{{X}}&{}\\{{A}}&{{B}}&{{C}}\end{pmatrix} \\ $$$${X}=\frac{{A}×{B}×{C}}{\mathrm{10}} \\ $$…
Question Number 74573 by Raxreedoroid last updated on 26/Nov/19 $$\mathrm{Find}\:\left(\mathrm{turn}\:\mathrm{it}\:\mathrm{into}\:\mathrm{non}-\mathrm{segma}\:\mathrm{expression}\right) \\ $$$$\mathrm{1}+\underset{{k}=\mathrm{1}} {\overset{{n}−\mathrm{1}} {\sum}}\frac{\left(−\mathrm{1}\right)^{{k}} +\mathrm{3}}{\mathrm{2}} \\ $$ Commented by mathmax by abdo last updated on…
Question Number 74559 by lalitchand last updated on 26/Nov/19 $$\mathrm{The}\:\mathrm{sum}\:\mathrm{of}\:\mathrm{N}\:\mathrm{Arithmetic}\:\mathrm{means}\:\mathrm{between}\:\mathrm{two}\:\mathrm{numbers} \\ $$$$\mathrm{is}\:\mathrm{20}.\:\mathrm{If}\:\mathrm{last}\:\mathrm{mean}\:\mathrm{is}\:\mathrm{double}\:\mathrm{of}\:\mathrm{1st}\:\mathrm{mean} \\ $$$$\mathrm{and}\:\mathrm{one}\:\mathrm{is}\:\mathrm{three}\:\mathrm{times}\:\mathrm{the}\:\mathrm{another}\:\mathrm{number}.\: \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{numbers} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 140029 by metamorfose last updated on 03/May/21 $${si}\:{p}={ab}\:{and}\:\left({a}=\mathrm{1}\:{ou}\:{b}=\mathrm{1}\right)\:{then}\:{p}\:{is}\:{prime}? \\ $$ Answered by MJS_new last updated on 03/May/21 $$\mathrm{example}:\:{a}=\mathrm{1}\wedge{b}=\mathrm{4}\:\Rightarrow\:{p}=\mathrm{4}\:\mathrm{not}\:\mathrm{prime} \\ $$ Terms of Service…