Question Number 179660 by mathlove last updated on 31/Oct/22 $$\frac{{a}+{b}}{\:\sqrt{{ab}}}=\mathrm{4}\:\:\:\:{then}\:{a}:{b}=? \\ $$ Answered by FelipeLz last updated on 31/Oct/22 $$\frac{{a}+{b}}{\:\sqrt{{ab}}}\:=\:\mathrm{4} \\ $$$$\frac{{a}^{\mathrm{2}} +\mathrm{2}{ab}+{b}^{\mathrm{2}} }{\:{ab}}\:=\:\mathrm{16} \\…
Question Number 179659 by mathlove last updated on 31/Oct/22 $${cos}\frac{\mathrm{2}\pi}{\mathrm{7}}=\frac{{ab}}{{c}} \\ $$$${cos}\frac{\mathrm{4}\pi}{\mathrm{7}}=\frac{{bc}}{{a}} \\ $$$${cos}\frac{\mathrm{6}\pi}{\mathrm{7}}=\frac{{ac}}{{b}}\:\:\:\:\:\:\: \\ $$$${faind}\:\:\:{a}^{\mathrm{2}} +{b}^{\mathrm{2}} +{c}^{\mathrm{2}} =? \\ $$ Answered by DvMc last…
Question Number 179650 by Linton last updated on 31/Oct/22 $${If}\:{x}\:{and}\:{y}\:{are}\:{positive} \\ $$$${integers}\:{and}\:\mathrm{2}{x}−\mathrm{4}{y}\:=\:\mathrm{3} \\ $$$${then}\:{find}\:\frac{\mathrm{16}^{{x}} }{\mathrm{256}^{{y}} } \\ $$ Commented by Rasheed.Sindhi last updated on 31/Oct/22…
Question Number 114110 by bemath last updated on 17/Sep/20 $$\frac{\mathrm{4}}{\mathrm{1}!}\:+\:\frac{\mathrm{11}}{\mathrm{2}!}\:+\:\frac{\mathrm{22}}{\mathrm{3}!}\:+\:\frac{\mathrm{37}}{\mathrm{4}!}\:+\:…\:=\:? \\ $$ Commented by Dwaipayan Shikari last updated on 17/Sep/20 $${y}\:\:\bigtriangleup{y}\:\bigtriangleup^{\mathrm{2}} {y} \\ $$$$\mathrm{4} \\…
Question Number 48559 by behi83417@gmail.com last updated on 25/Nov/18 Answered by tanmay.chaudhury50@gmail.com last updated on 25/Nov/18 $${z}\left({x}^{\mathrm{2}} −{yz}\right)={a}^{\mathrm{2}} {z} \\ $$$${x}\left({y}^{\mathrm{2}} −{xz}\right)={b}^{\mathrm{2}} {x} \\ $$$${y}\left({z}^{\mathrm{2}}…
Question Number 48553 by Cheyboy last updated on 25/Nov/18 $$\mathrm{In}\:\mathrm{a}\:\mathrm{hospital}\:\mathrm{unit},\mathrm{there}\:\mathrm{are}\:\mathrm{8}\:\mathrm{nurses} \\ $$$$\mathrm{and}\:\mathrm{5}\:\mathrm{physicians}.\:\mathrm{7}\:\mathrm{of}\:\mathrm{them}\:\mathrm{are} \\ $$$$\mathrm{female}\:\mathrm{nurses}\:\mathrm{and}\:\mathrm{3}\:\mathrm{of}\:\mathrm{them}\:\mathrm{are} \\ $$$$\mathrm{male}\:\mathrm{physicians}. \\ $$$$\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{the}\:\mathrm{probability}\:\mathrm{of} \\ $$$$\mathrm{selecting}\:\mathrm{a}\:\mathrm{staff}\:\mathrm{who}\:\mathrm{is}\:\mathrm{Nurse}\:\mathrm{or} \\ $$$$\mathrm{Male}? \\ $$$$\mathrm{plzz}\:\mathrm{help} \\…
Question Number 114077 by bemath last updated on 17/Sep/20 Answered by john santu last updated on 17/Sep/20 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 179593 by mathlove last updated on 30/Oct/22 $${pleas}\:{proof}\:{the}\:{elipse}\:{environment} \\ $$$${formullah} \\ $$$${p}=\pi\sqrt{\mathrm{2}{a}^{\mathrm{2}} +\mathrm{2}{b}^{\mathrm{2}} } \\ $$ Commented by mr W last updated on…
Question Number 48509 by naka3546 last updated on 24/Nov/18 $${For}\:\:{every}\:\:{natural}\:\:{numbers}\:\:{n}\:\: \\ $$$${Find}\:\:\:{the}\:\:{value}\:\:{of} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\underset{\mathrm{0}\leqslant{j}\leqslant{i}\leqslant{n}} {\sum}\:\:\frac{\left(−\mathrm{1}\right)^{{j}} }{\left({n}\:−\:{i}\right)!\:{j}!} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 179570 by infinityaction last updated on 30/Oct/22 $$\mathrm{find}\:\mathrm{the}\:\mathrm{minimum}\:\mathrm{value}\:\mathrm{of}\:\mathrm{function} \\ $$$$\boldsymbol{\mathrm{f}}\left(\boldsymbol{\mathrm{x}}\right)=\sqrt{\boldsymbol{\mathrm{x}}^{\mathrm{2}} +\frac{\mathrm{4}}{\boldsymbol{\mathrm{x}}^{\mathrm{2}} }−\mathrm{8}\boldsymbol{\mathrm{x}}−\frac{\mathrm{12}}{\boldsymbol{\mathrm{x}}}+\mathrm{25}}\:+\:\sqrt{\boldsymbol{\mathrm{x}}^{\mathrm{2}} +\frac{\mathrm{4}}{\boldsymbol{\mathrm{x}}^{\mathrm{2}} }+−\mathrm{16}\boldsymbol{\mathrm{x}}−\frac{\mathrm{16}}{\boldsymbol{\mathrm{x}}}+\mathrm{80}} \\ $$ Answered by a.lgnaoui last updated on 01/Nov/22…