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}}…
Question Number 26528 by bbbbbb last updated on 26/Dec/17 $${f}\:{length}\:\:{of}\:{a}\:{rectangle}\:{is}\:{reduced}\:{by}\:\mathrm{5}\: \\ $$$${umits}\:{and}\:{its}\:{breadth}\:{is}\:{increasesd} \\ $$$$\mathrm{3}\:{units}\:{then}\:{area}\:{of}\:{rectangle}\:{is}\:{reduced} \\ $$$${by}\:\mathrm{8}\:{sq}\:{units}\:{if}\:{lenghth}\:{is}\:{reduced} \\ $$$$\mathrm{3}\:{units}\:{and}\:{breadth}\:{is}\:{increased}\:{by}\: \\ $$$$\mathrm{2}\:{units}\:{then}\:{area}\:{of}\:{rectangle} \\ $$$${will}\:{increased}\:{by}\:\mathrm{67}\:{sq}\:{units}\:.\: \\ $$$${then}\:{find}\:{length}\:{and}\:{breadth}\:{of}\:{rectangle} \\…
Question Number 92055 by 675480065 last updated on 04/May/20 $$\int\left(\frac{\mathrm{x}+\mathrm{1}}{\left(\mathrm{x}^{\mathrm{2}} +\mathrm{4x}+\mathrm{5}\right)^{\mathrm{2}} }\right)\mathrm{dx} \\ $$ Commented by Prithwish Sen 1 last updated on 04/May/20 $$\int\frac{\mathrm{x}+\mathrm{1}}{\left(\left(\mathrm{x}+\mathrm{2}\right)^{\mathrm{2}} +\mathrm{1}\right)^{\mathrm{2}}…