Question Number 22076 by ajfour last updated on 10/Oct/17 $${find}\:{approximately}\:{and}\:{quickly} \\ $$$${without}\:{calculator}\:\frac{\mathrm{54329}}{\mathrm{2467}}\:. \\ $$ Commented by ajfour last updated on 10/Oct/17 $${my}\:{way}: \\ $$$$\:\frac{\mathrm{54329}}{\mathrm{2467}}\approx\frac{\mathrm{543}.\mathrm{3}}{\mathrm{24}.\mathrm{67}}\:\approx\:\frac{\mathrm{543}.\mathrm{3}+\frac{\mathrm{1}}{\mathrm{3}}×\mathrm{22}}{\mathrm{24}.\mathrm{67}+\frac{\mathrm{1}}{\mathrm{3}}} \\…
Question Number 153146 by SANOGO last updated on 05/Sep/21 Answered by puissant last updated on 05/Sep/21 $${posons}\:{u}\left({n}\right)=\underset{{k}=\mathrm{1}} {\overset{{n}} {\sum}}{a}\left({n}\right)\:{et}\:{prenons}\:{f}\:{une} \\ $$$${fonction}\:{de}\:{classe}\:{C}^{\mathrm{1}} ,\:{alors}\:{posons} \\ $$$${a}\left({n}\right)=\mathrm{1}\:{pour}\:{tout}\:{n}\:{et}\:{f}\left({n}\right)=\frac{\mathrm{1}}{{n}} \\…
Question Number 22071 by Tinkutara last updated on 10/Oct/17 $$\mathrm{STATEMENT}-\mathrm{1}\::\:\mathrm{If}\:\mathrm{an}\:\mathrm{object}\:\mathrm{is}\:\mathrm{at} \\ $$$$\mathrm{rest}\:\mathrm{then}\:\mathrm{there}\:\mathrm{should}\:\mathrm{not}\:\mathrm{be}\:\mathrm{any}\:\mathrm{friction} \\ $$$$\mathrm{on}\:\mathrm{it}. \\ $$$$\mathrm{STATEMENT}-\mathrm{2}\::\:\mathrm{If}\:\mathrm{an}\:\mathrm{object}\:\mathrm{is}\:\mathrm{moving} \\ $$$$\mathrm{then}\:\mathrm{the}\:\mathrm{friction}\:\mathrm{acting}\:\mathrm{on}\:\mathrm{it}\:\mathrm{has}\:\mathrm{to}\:\mathrm{be} \\ $$$$\mathrm{kinetic}. \\ $$$$\mathrm{STATEMENT}-\mathrm{3}\::\:\mathrm{If}\:\mathrm{an}\:\mathrm{object}\:\mathrm{is}\:\mathrm{at}\:\mathrm{rest} \\ $$$$\mathrm{then}\:\mathrm{kinetic}\:\mathrm{friction}\:\mathrm{cannot}\:\mathrm{act}\:\mathrm{on}\:\mathrm{it}. \\…
Question Number 87598 by aseer imad last updated on 05/Apr/20 Commented by aseer imad last updated on 05/Apr/20 please solve this problem by matrix. by reduced row echilon form or row echilon form Terms of Service Privacy Policy Contact:…
Question Number 22062 by x² – y²@gmail.com last updated on 10/Oct/17 Commented by FilupS last updated on 10/Oct/17 $$=\underset{{n}=\mathrm{1}} {\overset{\mathrm{97}} {\sum}}\frac{\mathrm{1}}{\left({n}+\mathrm{1}\right)!\centerdot\left({n}+\mathrm{3}\right)!} \\ $$$$=\underset{{n}=\mathrm{1}} {\overset{\mathrm{97}} {\sum}}\frac{\mathrm{1}}{\left({n}+\mathrm{1}\right)!^{\mathrm{2}}…
Question Number 22061 by NECx last updated on 10/Oct/17 $$\mathrm{If}\:\mathrm{9x}^{\mathrm{2}} +\mathrm{6xy}+\mathrm{4y}^{\mathrm{2}} \:\mathrm{is}\:\mathrm{a}\:\mathrm{factor}\:\mathrm{of} \\ $$$$\mathrm{27x}^{\mathrm{3}} −\mathrm{8y}^{\mathrm{3}} .\:\mathrm{find}\:\mathrm{the}\:\mathrm{other}\:\mathrm{factor}. \\ $$ Answered by sma3l2996 last updated on 10/Oct/17…
Question Number 22059 by tawa tawa last updated on 10/Oct/17 $$\mathrm{A}\:\mathrm{flywheel}\:\mathrm{whose}\:\mathrm{diameter}\:\mathrm{is}\:\mathrm{1}.\mathrm{5m}\:\mathrm{decrease}\:\mathrm{uniformly}\:\mathrm{from}\:\mathrm{240rad}/\mathrm{min} \\ $$$$\mathrm{until}\:\mathrm{it}\:\mathrm{came}\:\mathrm{to}\:\mathrm{rest}\:\mathrm{10s}.\:\mathrm{Find}\:\mathrm{the}\:\mathrm{number}\:\mathrm{of}\:\mathrm{revolution}\:\mathrm{made}. \\ $$ Answered by Tinkutara last updated on 10/Oct/17 $${r}=\frac{\mathrm{3}}{\mathrm{4}}{m};\:\omega_{\mathrm{1}} =\mathrm{2}\pi\left(\mathrm{4}{rps}\right)=\mathrm{8}\pi\:{rad}/{s} \\…
Question Number 153128 by mathdanisur last updated on 04/Sep/21 $$\mathrm{if}\:\:\:\frac{\mathrm{x}+\mathrm{y}}{\mathrm{2}}\:+\:\sqrt{\mathrm{xy}}\:=\:\frac{\mathrm{1}+\sqrt{\mathrm{5}}}{\mathrm{2}}\:\:\mathrm{and}\:\:\mathrm{x}^{\mathrm{2}} +\mathrm{y}^{\mathrm{2}} =\sqrt{\mathrm{5}} \\ $$$$\mathrm{find}\:\:\:\frac{\mathrm{1}}{\mathrm{x}}\:+\:\frac{\mathrm{1}}{\mathrm{y}}\:=\:? \\ $$ Answered by EDWIN88 last updated on 05/Sep/21 $$\:\:\begin{cases}{{x}+{y}={u}}\\{{xy}={v}}\end{cases}\Rightarrow\begin{cases}{{u}+\mathrm{2}\sqrt{{v}}\:=\mathrm{1}+\sqrt{\mathrm{5}}}\\{{u}^{\mathrm{2}} −\mathrm{2}{v}=\sqrt{\mathrm{5}}}\end{cases}…
Question Number 22058 by tawa tawa last updated on 10/Oct/17 $$\mathrm{Two}\:\mathrm{balls}\:\mathrm{of}\:\mathrm{mass}\:\mathrm{500g}\:\mathrm{and}\:\mathrm{750g}\:\mathrm{moving}\:\mathrm{with}\:\mathrm{15m}/\mathrm{s}\:\mathrm{and} \\ $$$$\mathrm{10m}/\mathrm{s}\:\mathrm{towards}\:\mathrm{each}\:\mathrm{other}\:\mathrm{collides}.\:\mathrm{Find}\:\mathrm{the}\:\mathrm{velocities}\:\mathrm{of}\:\mathrm{the}\:\mathrm{ball}\:\mathrm{after} \\ $$$$\mathrm{collision},\:\mathrm{if}\:\mathrm{the}\:\mathrm{coefficient}\:\mathrm{of}\:\mathrm{restitution}\:\mathrm{is}\:\mathrm{0}.\mathrm{8} \\ $$ Answered by ajfour last updated on 11/Oct/17 $${MV}+{mv}=\mathrm{15}{m}−\mathrm{10}{M}…
Question Number 22057 by FilupS last updated on 10/Oct/17 $$\int{f}\left({x}\right){dx}=\left(\frac{{d}}{{dx}}\right)^{\mathrm{2}} \\ $$$${f}\left({x}\right)=??? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com