Question Number 34803 by Tinkutara last updated on 11/May/18 Commented by ajfour last updated on 11/May/18 Commented by ajfour last updated on 11/May/18 $$\mathrm{2}{x}+{y}=\mathrm{0} \\…
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Question Number 165431 by ajfour last updated on 01/Feb/22 Answered by mr W last updated on 01/Feb/22 Commented by mr W last updated on 01/Feb/22…
Question Number 34326 by 33 last updated on 04/May/18 $${find}\:{the}\:{equation}\:{of}\:{the}\:\mathrm{2}{D} \\ $$$${curve}\:{such}\:{that}\:{the}\:{lines} \\ $$$$\:\frac{{x}}{{t}}\:+\:\frac{{y}}{\left({a}−{t}\right)\:}\:=\:\mathrm{1} \\ $$$$\:{are}\:{always}\:{tangent}\:{to} \\ $$$${the}\:{curve}. \\ $$$${given}\:'{a}'\:\:{is}\:{a}\:{positive}\:{real} \\ $$$${constant}\:{and}\:'{t}'\:{is}\:{a} \\ $$$${parameter}.\:\left(\:\mathrm{0}\:<\:{t}\:<\:{a}\:\right) \\…
Question Number 165272 by cortano1 last updated on 28/Jan/22 Answered by ajfour last updated on 28/Jan/22 $$\mathrm{2}{a}=\mathrm{10}{cm} \\ $$$${a}^{\mathrm{2}} =\left(\mathrm{2}{r}−\mathrm{2}{a}\right)\left(\mathrm{2}{a}\right) \\ $$$${r}=\frac{\mathrm{5}{a}}{\mathrm{4}}=\frac{\mathrm{5}}{\mathrm{8}}\left(\mathrm{10}{cm}\right)=\mathrm{6}.\mathrm{25}{cm} \\ $$ Answered…
Question Number 165024 by cortano1 last updated on 25/Jan/22 Commented by cortano1 last updated on 25/Jan/22 $$\:{find}\:{a}. \\ $$$$\left({A}\right)\mathrm{2}\sqrt{\mathrm{46}}\:\:\:\:\:\:\:\left({C}\right)\mathrm{12} \\ $$$$\left({B}\right)\:\mathrm{2}\sqrt{\mathrm{42}}\:\:\:\:\:\:\:\left({D}\right)\:\mathrm{2}\sqrt{\mathrm{39}} \\ $$ Commented by…
Question Number 33927 by Tinkutara last updated on 27/Apr/18 Commented by Tinkutara last updated on 27/Apr/18 $${Why}\:{here}\:{x}\:{is}\:{substituted}\:{x}=\frac{{x}+{y}}{\:\sqrt{\mathrm{2}}}? \\ $$ Commented by Tinkutara last updated on…
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Question Number 164728 by mr W last updated on 21/Jan/22 Commented by mr W last updated on 21/Jan/22 $${two}\:{points}\:{P}\:{and}\:{Q}\:{on}\:{the}\:{parabola} \\ $$$${y}=\frac{{x}^{\mathrm{2}} }{{a}}\:{with}\:\mid{PQ}\mid={l}.\:{the}\:{normal}\:{lines} \\ $$$${at}\:{P}\:{and}\:{Q}\:{intersect}\:{at}\:{point}\:{S}. \\…
Question Number 164713 by alcohol last updated on 21/Jan/22 Commented by alcohol last updated on 21/Jan/22 $${please}\:{help}\:{guys} \\ $$ Terms of Service Privacy Policy Contact:…