Question Number 142820 by metamorfose last updated on 05/Jun/21 $${find}\:{k}\:{if}\::\:{C}_{{n}} ^{{k}} ={n}+\mathrm{1} \\ $$ Commented by mr W last updated on 06/Jun/21 $${k}={n}+\mathrm{1} \\ $$$${because}\:{C}_{{n}}…
Question Number 142822 by aupo14 last updated on 05/Jun/21 Answered by MJS_new last updated on 06/Jun/21 $${x}^{\mathrm{2}} ={i}+{x}\:\Rightarrow\:{x}=\frac{\mathrm{1}+\sqrt{\mathrm{1}+\mathrm{4i}}}{\mathrm{2}}=\frac{\mathrm{2}+\sqrt{\mathrm{2}\left(\mathrm{1}+\sqrt{\mathrm{17}}\right)}}{\mathrm{4}}+\frac{\sqrt{\mathrm{2}\left(−\mathrm{1}+\sqrt{\mathrm{17}}\right)}}{\mathrm{4}}\mathrm{i} \\ $$$$\mathrm{the}\:\mathrm{other}\:\mathrm{solution}\:\mathrm{doesn}'\mathrm{t}\:\mathrm{fit}\:\left(\mathrm{just}\:\mathrm{give}\:\mathrm{it}\:\mathrm{a}\:\mathrm{try}\right) \\ $$ Terms of Service…
Question Number 77285 by jagoll last updated on 05/Jan/20 $$\mathrm{how}\:\mathrm{to}\:\mathrm{find}\:\mathrm{the}\: \\ $$$$\mathrm{Fourier}\:\mathrm{series}\:\mathrm{of}\:\mathrm{f}\left(\mathrm{x}\right)\:=\:\mathrm{x}\:,\:\mathrm{0}\:<\:\mathrm{x}<\frac{\mathrm{1}}{\mathrm{8}} \\ $$ Answered by john santu last updated on 05/Jan/20 $$\mathrm{because}\:\mathrm{f}\left(\mathrm{x}\right)\:\mathrm{an}\:\mathrm{odd}\:\mathrm{function}\: \\ $$$$,\:\mathrm{we}\:\mathrm{used}\:\mathrm{the}\:\mathrm{sine}\:\mathrm{series}.…
Question Number 11748 by tawa last updated on 30/Mar/17 $$\mathrm{Solve}\:\mathrm{simultaneously} \\ $$$$\mathrm{x}^{\mathrm{2}} \:+\:\mathrm{4y}^{\mathrm{2}} \:+\:\mathrm{xy}\:=\:\mathrm{6}\:\:\:\:\:…………..\:\mathrm{equation}\:\left(\mathrm{i}\right) \\ $$$$\mathrm{3x}^{\mathrm{2}} \:+\:\mathrm{8y}^{\mathrm{2}} \:=\:\mathrm{14}\:\:\:\:\:\:\:\:\:\:\:…………..\:\mathrm{equation}\:\left(\mathrm{ii}\right) \\ $$ Answered by mrW1 last updated…
Question Number 77280 by A8;15: last updated on 05/Jan/20 Commented by mr W last updated on 05/Jan/20 $$?????? \\ $$$${can}\:{you}\:{understand}\:{yourself}\:{sir}? \\ $$ Commented by mathmax…
Question Number 11743 by saa last updated on 30/Mar/17 $$\mathrm{9}/\mathrm{3}\left(\mathrm{6}×\mathrm{4}/\mathrm{8}\right)=? \\ $$ Answered by Joel576 last updated on 31/Mar/17 $$\frac{\mathrm{9}}{\mathrm{3}\left(\mathrm{6}\:.\:\frac{\mathrm{1}}{\mathrm{2}}\right)}\:=\:\frac{\mathrm{9}}{\mathrm{3}\:.\:\mathrm{3}}\:=\:\mathrm{1} \\ $$ Terms of Service…
Question Number 77279 by A8;15: last updated on 05/Jan/20 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 142815 by mohammad17 last updated on 05/Jun/21 $${find}\:{all}\:{roots}\:{of}\: \\ $$$$ \\ $$$${m}^{\mathrm{8}} +\mathrm{7}{m}^{\mathrm{6}} +\mathrm{2}{m}^{\mathrm{5}} −\mathrm{12}=\mathrm{0} \\ $$ Commented by MJS_new last updated on…
Question Number 11741 by uni last updated on 30/Mar/17 $$\int\mathrm{xtan}^{\mathrm{2}} \:\mathrm{x}\:\mathrm{dx}=? \\ $$ Answered by mrW1 last updated on 30/Mar/17 $$\int{x}\mathrm{tan}^{\mathrm{2}} \:{x}\:{dx}=\int\mathrm{tan}^{\mathrm{2}} \:{x}\:{d}\left(\frac{{x}^{\mathrm{2}} }{\mathrm{2}}\right) \\…
Question Number 142814 by mathdanisur last updated on 05/Jun/21 Commented by mr W last updated on 05/Jun/21 $${what}\:{do}\:{you}\:{mean}\:{with}\:{F}={R}\centerdot{EF}? \\ $$ Commented by mathdanisur last updated…