Question Number 8353 by Nayon last updated on 09/Oct/16 $$\sqrt{\mathrm{240}+\mathrm{2}\sqrt{\mathrm{14319}}}=? \\ $$ Answered by ridwan balatif last updated on 09/Oct/16 $$\sqrt{\left(\mathrm{111}+\mathrm{129}\right)+\mathrm{2}\sqrt{\mathrm{111}.\mathrm{129}}},\:\mathrm{remember}\::\sqrt{\left({a}+{b}\right)+\mathrm{2}\sqrt{{ab}}}=\sqrt{{a}}+\sqrt{{b}} \\ $$$$\sqrt{\mathrm{111}}+\sqrt{\mathrm{129}} \\ $$$$\mathrm{by}\:\mathrm{using}\:\mathrm{kalkulator},\:\mathrm{i}\:\mathrm{get}…
Question Number 139426 by I want to learn more last updated on 26/Apr/21 Answered by physicstutes last updated on 26/Apr/21 $$\mathrm{1}.\:\:{x}\frac{{dy}}{{dx}}\:=\:{x}^{\mathrm{2}} +{y} \\ $$$${y}\:=\:{x}^{\mathrm{2}} +{cx}\:\Rightarrow\:\frac{{dy}}{{dx}}\:=\:\mathrm{2}{x}\:+\:{c}…
Question Number 8352 by tawakalitu last updated on 09/Oct/16 $$\mathrm{make}\:\mathrm{t}\:\mathrm{the}\:\mathrm{subject}\:\mathrm{of}\:\mathrm{the}\:\mathrm{formular}. \\ $$$$\mathrm{s}\:=\:\mathrm{ut}\:+\:\frac{\mathrm{1}}{\mathrm{2}}\mathrm{gt}^{\mathrm{2}} \:+\:\mathrm{3t}^{\mathrm{3}} \\ $$ Answered by fernandodantas1996 last updated on 13/Oct/16 $$\mathrm{s}\:=\:\mathrm{t}\left(\mathrm{u}\:+\:\frac{\mathrm{1}}{\mathrm{2}}\mathrm{gt}+\mathrm{3t}^{\mathrm{2}} \right)\:\Leftrightarrow\:\mathrm{t}\:=\:\frac{\mathrm{s}}{\mathrm{u}\:+\:\frac{\mathrm{1}}{\mathrm{2}}\mathrm{gt}\:+\:\mathrm{3t}^{\mathrm{2}} }…
Question Number 8351 by Nayon last updated on 09/Oct/16 $$ \\ $$$$\:\:\:{x}^{\mathrm{2}} =\mathrm{816}−\mathrm{64}\sqrt{\mathrm{77}} \\ $$$$\:\:\:{x}=?\left[{write}\:{x}\:{like}\:{a}\sqrt{{c}\:}+{b}\sqrt{\left.{d}\right]}\right. \\ $$$$ \\ $$ Commented by ridwan balatif last updated…
Question Number 8350 by Nayon last updated on 09/Oct/16 $${solve}: \\ $$$$ \\ $$$$\:\:\:\:\:\:\:\frac{\mathrm{5}}{\mathrm{3}{x}+\mathrm{2}}+\frac{\mathrm{8}}{\mathrm{4}{x}+\mathrm{2}}=\frac{\mathrm{33}}{\mathrm{9}{x}+\mathrm{8}} \\ $$ Answered by Rasheed Soomro last updated on 10/Oct/16 $$\:\frac{\mathrm{5}}{\mathrm{3}{x}+\mathrm{2}}+\frac{\mathrm{8}}{\mathrm{4}{x}+\mathrm{2}}=\frac{\mathrm{33}}{\mathrm{9}{x}+\mathrm{8}}…
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Question Number 139422 by 676597498 last updated on 26/Apr/21 $${C}_{{n}} ^{\:\mathrm{2}} =\frac{\mathrm{1}}{\mathrm{8}}{P}_{{n}\:} ^{\:\mathrm{8}} \\ $$$${find}\:{n} \\ $$ Commented by mohammad17 last updated on 27/Apr/21 $${can}\:{not}\:{find}\:{value}\:{of}\:{n}\:{in}\:{this}\:{form}…
Question Number 8347 by sou1618 last updated on 09/Oct/16 $${a}_{\mathrm{1}} =\mathrm{2}\:,\:\:{a}_{{n}+\mathrm{1}} >{a}_{{n}} \\ $$$$\left({a}_{{n}+\mathrm{1}} −{a}_{{n}} \right)^{\mathrm{2}} =\:\mathrm{2}\left({a}_{{n}+\mathrm{1}} +{a}_{{n}} \right) \\ $$$$\:{a}_{{n}} =?? \\ $$$${help}\:{me}\:{please}. \\…
Question Number 139419 by mathocean1 last updated on 26/Apr/21 $${ABCD}\:{is}\:{a}\:{rectangle}\:{such}\:{that}\: \\ $$$${AD}=\mathrm{2}{AB}\:{and}\:{its}\:{center}\:{is}\:{O}.\: \\ $$$${H}\:{is}\:{the}\:{top}\:{of}\:{a}\:{pyramid}\:{which} \\ $$$${has}\:{ABCD}\:{as}\:{base}.\:{All}\:{lateral} \\ $$$${faces}\:{are}\:{isosceles}\:{triangles}.\:{planes} \\ $$$$\left({HAB}\right)\:{and}\:\left({HCD}\right)\:{are}\:\bot. \\ $$$${i}\:{have}\:{joined}\:{a}\:{graphic}. \\ $$$$\mathrm{1}.\:{show}\:{that}\:\left({OH}\right)\bot\left({ABC}\right). \\…
Question Number 8345 by suci last updated on 09/Oct/16 $${y}=\left({x}+\mathrm{2}\right)^{\mathrm{2}} −\mathrm{3} \\ $$$${Translation}\:{T}_{\mathrm{1}} =\begin{pmatrix}{{a}}\\{{b}}\end{pmatrix} \\ $$$${y}'={x}^{\mathrm{2}} \\ $$$${a}=?\:{b}=? \\ $$ Answered by sandy_suhendra last updated…