Question Number 90440 by ajfour last updated on 23/Apr/20 Commented by ajfour last updated on 23/Apr/20 $${If}\:{BC}\:{is}\:\bot\:{to}\:{CD}\:,\:{find}\:{R}/{r}. \\ $$ Commented by john santu last updated…
Question Number 24831 by Eng.Firas last updated on 27/Nov/17 $$ \\ $$$$\int_{\mathrm{1}} ^{\mathrm{2}} \int_{\mathrm{1}} ^{\mathrm{2}} {ln}\left({x}+{y}\right){dx}\:{dy} \\ $$ Answered by prakash jain last updated on…
Question Number 90362 by TawaTawa1 last updated on 23/Apr/20 Commented by jagoll last updated on 23/Apr/20 $$\mathrm{trapezium}? \\ $$ Commented by mr W last updated…
Question Number 90356 by I want to learn more last updated on 23/Apr/20 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 90347 by mr W last updated on 22/Apr/20 Commented by mr W last updated on 22/Apr/20 $${the}\:{parabola}\:{has}\:{the}\:{same}\:{shape}\:{as} \\ $$$${y}={x}^{\mathrm{2}} .\:{find}\:{it}'{s}\:{equation}\:{if}\:{it}\:{passes} \\ $$$${through}\:{O},\:{A},\:{B}\:{as}\:{shown}. \\…
Question Number 90330 by I want to learn more last updated on 22/Apr/20 Commented by mr W last updated on 23/Apr/20 $${if}\:{trapezium}:\: \\ $$$${x}+\mathrm{2}=\mathrm{8} \\…
Question Number 24778 by ajfour last updated on 25/Nov/17 $${Show}\:{that}\:{the}\:{shortest}\:{distance} \\ $$$${between}\:{two}\:{opposite}\:{edges}\:\boldsymbol{{a}},\boldsymbol{{d}}\: \\ $$$${of}\:{a}\:{tetrahedron}\:{is}\:\mathrm{6}\boldsymbol{{V}}/\boldsymbol{{ad}}\mathrm{sin}\:\boldsymbol{\theta}, \\ $$$${where}\:\theta\:{is}\:{the}\:{angle}\:{between}\:{the} \\ $$$${edges}\:{and}\:{V}\:{is}\:{the}\:{volume}\:{of}\:{the} \\ $$$${tetrahedron}. \\ $$ Commented by ajfour…
Question Number 90272 by student work last updated on 22/Apr/20 Answered by behi83417@gmail.com last updated on 22/Apr/20 $$\mathrm{AO}+\mathrm{OC}=\mathrm{8} \\ $$$$\mathrm{AO}^{\mathrm{2}} +\mathrm{OC}^{\mathrm{2}} =\mathrm{6}^{\mathrm{2}} \\ $$$$\Rightarrow\mathrm{AO}.\mathrm{OC}=\frac{\mathrm{1}}{\mathrm{2}}\left[\left(\mathrm{AO}+\mathrm{OC}\right)^{\mathrm{2}} −\left(\mathrm{AO}^{\mathrm{2}}…
Question Number 155770 by amin96 last updated on 04/Oct/21 Commented by amin96 last updated on 04/Oct/21 $$\boldsymbol{\mathrm{P}}{rove}\:{that}\:\:\:\mathrm{2}\boldsymbol{\mathrm{mn}}=\boldsymbol{\mathrm{D}}×\boldsymbol{\mathrm{d}} \\ $$ Answered by mr W last updated…
Question Number 24684 by Tinkutara last updated on 24/Nov/17 $$\mathrm{Let}\:{ABCD}\:\mathrm{be}\:\mathrm{a}\:\mathrm{square}\:\mathrm{and}\:{M},\:{N}\:\mathrm{points} \\ $$$$\mathrm{on}\:\mathrm{sides}\:{AB},\:{BC}\:\mathrm{respectably},\:\mathrm{such}\:\mathrm{that} \\ $$$$\angle{MDN}\:=\:\mathrm{45}°.\:\mathrm{If}\:{R}\:\mathrm{is}\:\mathrm{the}\:\mathrm{midpoint}\:\mathrm{of} \\ $$$${MN}\:\mathrm{show}\:\mathrm{that}\:{RP}\:=\:{RQ}\:\mathrm{where}\:{P},\:{Q} \\ $$$$\mathrm{are}\:\mathrm{the}\:\mathrm{points}\:\mathrm{of}\:\mathrm{intersection}\:\mathrm{of}\:{AC}\:\mathrm{with} \\ $$$$\mathrm{the}\:\mathrm{lines}\:{MD},\:{ND}. \\ $$ Terms of Service…