Question Number 7246 by Tawakalitu. last updated on 18/Aug/16 Answered by Yozzia last updated on 19/Aug/16 $${Define}\:{the}\:{number}\:{k}\:{such}\:{that}\: \\ $$$${k}={x}^{{n}+\mathrm{3}} +{y}^{{n}+\mathrm{3}} +{z}^{{n}+\mathrm{3}} −{xyz}\left({x}^{{n}} +{y}^{{n}} +{z}^{{n}} \right)…
Question Number 7245 by 2402@gmail.com last updated on 18/Aug/16 $${Q}\mathrm{1}.{if}\:{y}^{\mathrm{1}/{n}} +{y}^{−\mathrm{1}/{n}} \:=\mathrm{2}\:{find}\:\frac{{d}^{\mathrm{2}} {y}}{{dx}^{\mathrm{2}} }\:. \\ $$$$ \\ $$$$ \\ $$ Commented by Yozzia last updated…
Question Number 7243 by Sh505146@gmail.com last updated on 18/Aug/16 $$\underset{{x}\rightarrow\infty} {\mathrm{lim}}\left(\sqrt{\left.{x}^{\mathrm{2}} +{x}+\mathrm{1}\right)}−\left(\sqrt{\left.{x}^{\mathrm{2}} +\mathrm{1}\right)}\right.\right. \\ $$$$< \\ $$ Commented by Rasheed Soomro last updated on 18/Aug/16…
Question Number 138315 by LUFFY last updated on 12/Apr/21 $$\int_{−\infty} ^{\:+\infty} \frac{\mathrm{cos}{x}}{\left({x}^{\mathrm{2}} +\mathrm{1}\right)}{dx} \\ $$$$\mathrm{don}'\mathrm{t}\:\mathrm{use}\:\mathrm{feynmann}\:\mathrm{trick} \\ $$ Answered by Ñï= last updated on 12/Apr/21 $${I}\left({t}\right)=\int_{−\infty}…
Question Number 7239 by pamelalara2222 @gmail last updated on 18/Aug/16 $${A}\:{soma}\:{de}\:{um}\:{numero}\:{com}\:{seu}\:{sextuplo}\:{e}\:{ingual}\:{a}\:\mathrm{280}.{Quale}\:{e}\:{o}\:{numero}? \\ $$ Commented by Rasheed Soomro last updated on 18/Aug/16 $$\mathcal{T}{ranslate}\:{in}\:\mathcal{E}{nglish}\:{please}. \\ $$ Terms…
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Question Number 7238 by pamelalara2222 @gmail last updated on 18/Aug/16 $${um}\:{numero}\:{somado}\:{ao}\:{seu}\:{triplo}\:{e}\:{igual}\:{a}\:\mathrm{36}.\:{qual}\:{e}\:{esse}\:{numero}? \\ $$ Commented by Rasheed Soomro last updated on 18/Aug/16 $$\mathcal{E}{nglish}\:{translation}\:{please}. \\ $$ Terms…
Question Number 72773 by ajfour last updated on 02/Nov/19 Commented by ajfour last updated on 02/Nov/19 $${If}\:{parabola}\:{in}\:{xz}\:{plane}\:{has}\:{eq}. \\ $$$${z}={ax}^{\mathrm{2}} \:\:\:{find}\:{eq}.\:{of}\:{shadow}\:{of} \\ $$$${this}\:{parabola}\:{on}\:{ground}\:\left({xy}\:{plane}\right). \\ $$ Commented…
Question Number 7234 by WagST last updated on 17/Aug/16 $${need}\:{help}\:{with}\:{step}\:{by}\:{step}.\:{thanks}. \\ $$$$ \\ $$$${x}\left({x}+\mathrm{4}\right)\left({x}−\mathrm{1}\right)=\mathrm{2}{x}\left({x}+\mathrm{4}\right) \\ $$$$ \\ $$$$ \\ $$ Answered by Yozzia last updated…
Question Number 7230 by Yozzia last updated on 17/Aug/16 $${An}\:{Interesting}\:{App}: \\ $$$${I}'{ve}\:{recently}\:{downloaded}\:{the}\:{app}\:{called} \\ $$$$'{Math}\:{Tricks}'\:{from}\:{the}\:{Google}\:{Play}\:{Store}. \\ $$$${If}\:{you}'{d}\:{like}\:{to}\:{improve}\:{your}\:{speed} \\ $$$${and}\:{skill}\:{in}\:{the}\:{mental}\:{calculations} \\ $$$${arena},\:{I}\:{think}\:{this}\:{app}\:{should}\:{be}\:{of} \\ $$$${interest}\:{to}\:{you}.\:{The}\:{app}\:{can}\:{throw}\:{you}\:{simple} \\ $$$${calculations}\:{that}\:{include}\:{the}\:{basic}\:{operations} \\…