Question Number 26686 by Rasheed.Sindhi last updated on 28/Dec/17 Commented by Rasheed.Sindhi last updated on 28/Dec/17 $$\mathrm{Question}#\mathrm{26312}\:\mathrm{by}\:\mathrm{Mr}\:\mathrm{Shivram198922} \\ $$$$\mathrm{reposted}\:\mathrm{here}\:\mathrm{to}\:\mathrm{refocus}\:\mathrm{the}\:\mathrm{question}. \\ $$ Answered by Rasheed.Sindhi last…
Question Number 26681 by Tanveer48 last updated on 28/Dec/17 $${f}:{R}×{R}\rightarrow{R}\:{such}\:{that}\:{f}\left({x}+{iy}\right)=\sqrt{{x}^{\mathrm{2}} +{y}^{\mathrm{2}} .} \\ $$$${Then}\:{f}\:{is} \\ $$$$\left.{a}\right)\:{many}−{one}\:{and}\:{into}\:{function} \\ $$$$\left.{b}\right)\:{one}−{one}\:{and}\:{onto}\:{function} \\ $$$$\left.{c}\right)\:{many}−{one}\:{and}\:{onto}\:{function} \\ $$$$\left.{d}\right)\:{one}−{one}\:{and}\:{into}\:{function} \\ $$ Commented…
Question Number 26634 by tawa tawa last updated on 27/Dec/17 Commented by tawa tawa last updated on 27/Dec/17 $$\mathrm{Am}\:\mathrm{confused}\:\mathrm{about}\:\mathrm{the}\:\mathrm{direction}\:\mathrm{of}\:\mathrm{the}\:\mathrm{25N}\:\mathrm{arrow}…\:\:\mathrm{does}\:\mathrm{it}\:\mathrm{mean}\:\:\:\left(−\:\mathrm{20N}\right)\:?? \\ $$ Answered by mrW1 last…
Question Number 26625 by Leong last updated on 27/Dec/17 $$\mathrm{3y}−\mathrm{2x}+\mathrm{7}=\mathrm{0} \\ $$$$\mathrm{x}^{\mathrm{2}} −\mathrm{4y}^{\mathrm{2}} −\mathrm{21}=\mathrm{0} \\ $$ Answered by ajfour last updated on 27/Dec/17 $$\left({x}−\mathrm{2}{y}\right)\left({x}+\mathrm{2}{y}\right)=\mathrm{21} \\…
Question Number 26623 by bbbbbb last updated on 27/Dec/17 $$\mathrm{distance}\:\mathrm{between}\:\mathrm{2}\:\mathrm{places}\:\mathrm{A}\:\mathrm{and}\:\mathrm{B}\:\mathrm{on} \\ $$$$\mathrm{road}\:\mathrm{is}\:\mathrm{70}\:\mathrm{km}.\:\mathrm{a}\:\mathrm{car}\:\mathrm{starts}\:\mathrm{from}\:\mathrm{A}\:\mathrm{and}\:\mathrm{other}\: \\ $$$$\mathrm{from}\:\mathrm{B}\:.\mathrm{if}\:\mathrm{they}\:\mathrm{travel}\:\mathrm{in}\:\mathrm{same}\:\mathrm{direction} \\ $$$$\mathrm{they}\:\mathrm{will}\:\mathrm{meet}\:\mathrm{after}\:\mathrm{7}\:\mathrm{hours}.\:\mathrm{if}\:\mathrm{they}\:\mathrm{travel} \\ $$$$\mathrm{towards}\:\mathrm{each}\:\mathrm{other}\:\mathrm{they}\:\mathrm{will}\:\mathrm{meet}\:\mathrm{after} \\ $$$$\mathrm{1}\:\mathrm{hour}\:\mathrm{then}\:\mathrm{find}\:\mathrm{their}\:\mathrm{speeds} \\ $$ Answered by mrW1…
Question Number 26601 by 01779506249 last updated on 27/Dec/17 $${Use}\:{polar}\:{co}-{ordinates}\:{to}\:{evaluate}\:\int\underset{{R}} {\int}{e}^{−\left({x}^{\mathrm{2}} +{y}^{\mathrm{2}} \right)} {dA},\:{where}\:{the}\:{region}\:{R}\:{is}\:{enclosed}\:{by}\:{the}\:{circle}\:{x}^{\mathrm{2}} +{y}^{\mathrm{2}} =\mathrm{1}. \\ $$ Answered by ajfour last updated on 27/Dec/17…
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Question Number 157645 by ajfour last updated on 26/Oct/21 $${what}\:{is}\:{the}\:{latest}\:{version} \\ $$$${of}\:{this}\:{app}\:{available} \\ $$$${i}\:{m}\:{having}\:\:\:\mathrm{2}.\mathrm{265} \\ $$ Answered by Tinku Tara last updated on 26/Oct/21 $$\mathrm{2}.\mathrm{265}\:\mathrm{is}\:\mathrm{latest}.\:\:\mathrm{Thank}\:\mathrm{You}.…
Question Number 26544 by kevansuthar@ gmail.com last updated on 26/Dec/17 $$\int\mathrm{1}/{x}^{\mathrm{2}} +{y}^{\mathrm{2}} {dydx} \\ $$ Answered by kaivan.ahmadi last updated on 26/Dec/17 $$\mathrm{x}^{\mathrm{2}} +\mathrm{y}^{\mathrm{2}} =\mathrm{r}^{\mathrm{2}}…