Question Number 40974 by Penguin last updated on 30/Jul/18 $${X}\:=\:\left({x}_{\mathrm{1}} ,\:{x}_{\mathrm{2}} ,\:…,\:{x}_{{n}} \right),\:\:\:\:{X}\in\mathbb{P}^{{n}} \\ $$$$\: \\ $$$$\mathrm{Does}\:\mathrm{there}\:\mathrm{exist}\:\mathrm{a}\:\mathrm{point}\:\mathrm{in}\:\mathrm{N}-\mathrm{dimensions}, \\ $$$$\mathrm{such}\:\mathrm{that}\:\mathrm{the}\:\mathrm{points}\:\mathrm{and}\:\mathrm{line}\:\mathrm{length}\:\left(\mathrm{from}\:\mathrm{origin}\right) \\ $$$$\mathrm{are}\:\mathrm{prime}? \\ $$$$\: \\ $$$$\mathrm{That}\:\mathrm{is},…
Question Number 106409 by bemath last updated on 05/Aug/20 $$\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{number}\:\mathrm{positive}\:\mathrm{integral}\:\mathrm{solutions} \\ $$$$\mathrm{for}\:\mathrm{xy}\:=\:\mathrm{72}\left(\mathrm{x}+\mathrm{y}\right)\:? \\ $$ Answered by 1549442205PVT last updated on 05/Aug/20 $$\mathrm{We}\:\mathrm{have}\: \\ $$$$\mathrm{xy}=\mathrm{72}\left(\mathrm{x}+\mathrm{y}\right)\Leftrightarrow\left(\mathrm{x}−\mathrm{72}\right)\left(\mathrm{y}−\mathrm{72}\right)=\mathrm{72}^{\mathrm{2}} \:\left(\ast\right)…
Question Number 106222 by Rasheed.Sindhi last updated on 03/Aug/20 $$\mathcal{D}{etermine}\:{x}\:\&\:{y}\:{such}\:{that}: \\ $$$$\mathrm{lcm}\left({x},{y}\right)−\mathrm{gcd}\left({x},{y}\right)={x}+{y}. \\ $$ Commented by Rasheed.Sindhi last updated on 03/Aug/20 Thanks sir 〽️�� �� Commented by Rasheed.Sindhi…
Question Number 106017 by Rasheed.Sindhi last updated on 02/Aug/20 $$\mathcal{D}{etermine}\:{x}\:\&\:{y},\:{such}\:{that}: \\ $$$$\mathrm{lcm}\left({x},{y}\right)−\mathrm{gcd}\left({x},{y}\right)={x}+{y}. \\ $$ Answered by Rasheed.Sindhi last updated on 03/Aug/20 $${Let}\:\mathrm{gcd}\left({x},{y}\right)={k}\:{and} \\ $$$$\:\:\:\:{x}={pk}\:,\:{y}={qk}\:\:{with}\:\mathrm{gcd}\left({p},{q}\right)=\mathrm{1} \\…
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Question Number 171359 by Mr.D.N. last updated on 13/Jun/22 $$\mathrm{A}\:\mathrm{heavenly}\:\mathrm{body}\:\mathrm{has}\:\mathrm{mass}\:\mathrm{one}\:\mathrm{third}\:\mathrm{of}\:\mathrm{the}\:\mathrm{earth}\:\mathrm{and}\:\mathrm{its} \\ $$$$\:\mathrm{radius}\:\mathrm{is}\:\mathrm{half}\:\mathrm{as}\:\mathrm{that}\:\mathrm{of}\:\mathrm{the}\:\mathrm{earth}.\:\mathrm{if}\:\mathrm{a}\:\mathrm{stone}\:\mathrm{weights}\:\mathrm{200N}\:\mathrm{on} \\ $$$$\mathrm{the}\:\mathrm{earth}'\mathrm{s}\:\mathrm{surface},\:\mathrm{find}\:\mathrm{its}\:\mathrm{weight}\:\mathrm{on}\:\mathrm{that}\:\mathrm{heavenly}\:\mathrm{body}. \\ $$ Answered by aleks041103 last updated on 13/Jun/22 $${W}=\frac{{GM}_{{pl}} {m}}{{R}^{\mathrm{2}}…
Question Number 39799 by tapukumar056@gmail.com last updated on 11/Jul/18 $$\boldsymbol{\mathrm{what}}\:\boldsymbol{\mathrm{will}}\:\boldsymbol{\mathrm{be}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{number}}\:\boldsymbol{\mathrm{which}}\:\boldsymbol{\mathrm{makes}}\:\mathrm{680621} \\ $$$$\boldsymbol{\mathrm{a}}\:\boldsymbol{\mathrm{perfect}}\:\boldsymbol{\mathrm{square}}\:\boldsymbol{\mathrm{root}}? \\ $$ Answered by $@ty@m last updated on 11/Jul/18 $$\mathrm{8}\mid\mathrm{680621}\mid\mathrm{825} \\ $$$$\mathrm{8}\mid\mathrm{64} \\…
Question Number 39708 by NECx last updated on 10/Jul/18 $${Find}\:{the}\:{complex}\:{number}\:{z}\:{if} \\ $$$${arg}\left({z}+\mathrm{1}\right)=\frac{\pi}{\mathrm{3}} \\ $$$${arg}\left({z}−\mathrm{1}\right)=\frac{\mathrm{4}\pi}{\mathrm{3}} \\ $$ Answered by MrW3 last updated on 10/Jul/18 $${let}\:{z}={a}+{bi} \\…
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