Question Number 34602 by abdo mathsup 649 cc last updated on 08/May/18 $${simplify}\:\sum_{{k}=\mathrm{0}} ^{{n}} \left(\frac{{k}}{{n}}\:−\alpha\right)^{\mathrm{2}} {C}_{{n}} ^{{k}} \:{x}^{{k}} \left(\mathrm{1}−{x}\right)^{{n}−{k}\:} \\ $$$$\alpha\in{C}. \\ $$ Terms of…
Question Number 34595 by abdo mathsup 649 cc last updated on 08/May/18 $${simplify}\:\:\sum_{{k}=\mathrm{1}} ^{{n}} \:\:\frac{\left(−\mathrm{1}\right)^{{k}−\mathrm{1}} }{{k}}\:{C}_{{n}} ^{{k}} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 165653 by mathlove last updated on 06/Feb/22 Commented by mr W last updated on 06/Feb/22 $${i}\:{thought}\:{all}\:{the}\:{time}\:{you}\:{guys}\:{are} \\ $$$${all}\:{no}\:{primary}\:{school}\:{pupils}\:{more}… \\ $$ Commented by mr…
Question Number 165639 by mathls last updated on 05/Feb/22 Commented by mathls last updated on 05/Feb/22 $$? \\ $$ Answered by aleks041103 last updated on…
Question Number 165620 by mathlove last updated on 05/Feb/22 $${solve} \\ $$$${z}^{\mathrm{7}} =−\mathrm{4} \\ $$ Answered by aleks041103 last updated on 05/Feb/22 $${z}^{\mathrm{7}} =−\mathrm{4}=\mathrm{4}{e}^{\left(\mathrm{2}{k}+\mathrm{1}\right){i}\pi} \\…
Question Number 34533 by tawa tawa last updated on 07/May/18 $$\mathrm{Solve}\:\mathrm{for}\:\:\mathrm{x}\::\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{5}\:\mathrm{log}_{\mathrm{4}} \mathrm{x}\:\:\:+\:\:\:\mathrm{48}\:\mathrm{log}_{\mathrm{x}} \mathrm{4}\:\:\:\:=\:\:\:\:\frac{\mathrm{x}}{\mathrm{8}} \\ $$ Commented by tawa tawa last updated on 08/May/18 $$\mathrm{yes}\:\mathrm{sir}. \\…
Question Number 100040 by student work last updated on 24/Jun/20 Commented by student work last updated on 24/Jun/20 $$\mathrm{help}\:\mathrm{me} \\ $$ Commented by mr W…
Question Number 165570 by cortano1 last updated on 04/Feb/22 Answered by Rohit143Jo last updated on 04/Feb/22 $$\theta=\mathrm{15}° \\ $$ Answered by Rohit143Jo last updated on…
Question Number 165562 by cortano1 last updated on 04/Feb/22 $$\:\:\left(\mathrm{6}{x}+\mathrm{5}\right)^{\mathrm{2}} =\frac{\mathrm{35}}{\mathrm{3}{x}^{\mathrm{2}} +\mathrm{5}{x}+\mathrm{2}} \\ $$ Answered by som(math1967) last updated on 04/Feb/22 $$\left(\mathrm{6}{x}+\mathrm{5}\right)^{\mathrm{2}} =\frac{\mathrm{35}×\mathrm{12}}{\mathrm{36}{x}^{\mathrm{2}} +\mathrm{60}{x}+\mathrm{24}} \\…
Question Number 165552 by mnjuly1970 last updated on 03/Feb/22 $$ \\ $$$$\:\:\:\:{f}\left({x}\right)=\:\frac{\:{x}\:+{m}}{\mid{x}\mid\:+\:\mathrm{6}}\:\:{and}\:\:{f}\:{is} \\ $$$$\:{strictly}\:\:{monoton}\:.{find}\:{the}\:{value}\left({s}\right) \\ $$$$\:\:{of}\:\:\:{m}\:\:\:.\:\:{m}\in\mathbb{Z} \\ $$ Answered by TheSupreme last updated on 03/Feb/22…