Question Number 111781 by mohammad17 last updated on 04/Sep/20 Commented by Dwaipayan Shikari last updated on 04/Sep/20 $$\frac{\mathrm{2}{n}+\mathrm{14}}{{n}+\mathrm{7}}−\frac{\mathrm{15}}{{n}+\mathrm{7}}=\mathrm{2}−\frac{\mathrm{15}}{{n}+\mathrm{7}} \\ $$$${n}\left(−\mathrm{2},−\mathrm{4},,−\mathrm{6},−\mathrm{8},−\mathrm{10},−\mathrm{12},−\mathrm{22},\mathrm{8}\right) \\ $$ Commented by mohammad17…
Question Number 111745 by mohammad17 last updated on 04/Sep/20 Commented by mohammad17 last updated on 04/Sep/20 $${help}\:{me}\:{sir} \\ $$ Commented by Aziztisffola last updated on…
Question Number 177280 by mokys last updated on 02/Oct/22 $${by}\:{ussing}\:{demover}\:{find}\: \\ $$$$ \\ $$$$\left({cos}\frac{\pi}{\mathrm{2}}\:\:+\:{i}\:{cos}\frac{\pi}{\mathrm{8}}\right)^{−\mathrm{5}} \:\: \\ $$ Commented by Frix last updated on 03/Oct/22 $$\mathrm{cos}\:\frac{\pi}{\mathrm{2}}\:=\mathrm{0}…
Question Number 46208 by hassentimol last updated on 22/Oct/18 Commented by hassentimol last updated on 22/Oct/18 $$ \\ $$$$\mathrm{Could}\:\mathrm{you}\:\mathrm{please}\:\mathrm{explain}\:\mathrm{me}\:\mathrm{these} \\ $$$$\mathrm{three}\:\mathrm{formulas}\:\mathrm{but}\:\mathrm{mainly}\:\mathrm{the}\:\mathrm{last} \\ $$$$\mathrm{one}\:\mathrm{as}\:\mathrm{I}\:\mathrm{do}\:\mathrm{not}\:\mathrm{understand}\:\mathrm{it}\:\mathrm{at}\:\mathrm{all}. \\ $$$$…
Question Number 46191 by mondodotto@gmail.com last updated on 22/Oct/18 $$\mathrm{There}\:\mathrm{are}\:\mathrm{three}\:\mathrm{classes}\:\mathrm{of}\:\mathrm{form}\:\mathrm{four} \\ $$$$\mathrm{which}\:\mathrm{are}\:\mathrm{4a},\:\mathrm{4b}\:\mathrm{and}\:\mathrm{4c}. \\ $$$$\mathrm{in}\:\mathrm{mathematics}\:\mathrm{result}\:\mathrm{the}\:\mathrm{arithmetic}\:\mathrm{mean}\:\mathrm{of} \\ $$$$\mathrm{4a}\:\mathrm{4b}\:\mathrm{and}\:\mathrm{4c}\:\mathrm{are}\:\mathrm{70},\:\mathrm{60}\:\mathrm{and}\:\mathrm{80}\:\mathrm{and}\:\mathrm{their} \\ $$$$\mathrm{standard}\:\mathrm{deviation}\:\mathrm{are}\:\mathrm{3},\:\mathrm{3}.\mathrm{4},\:\mathrm{and}\:\mathrm{2}.\mathrm{5} \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{arithmetic}\:\mathrm{mean}\:\mathrm{and}\:\mathrm{standard}\:\mathrm{deviation}\:\mathrm{when} \\ $$$$\mathrm{we}\:\mathrm{combine}\:\mathrm{the}\:\mathrm{results}\:\mathrm{of}\:\mathrm{mathematics}\:\mathrm{for}\: \\ $$$$\mathrm{all}\:\mathrm{classes}\:\mathrm{of}\:\mathrm{form}\:\mathrm{four}.\:\mathrm{Assuming}\:\mathrm{the} \\…
Question Number 46121 by Sanjarbek last updated on 21/Oct/18 Commented by tanmay.chaudhury50@gmail.com last updated on 21/Oct/18 $${as}\:{x}\rightarrow\infty\:\:\:{so}\:\mathrm{2}^{{x}} \rightarrow\infty \\ $$$${hence}\:\mathrm{3}^{\mathrm{2}^{{x}} } \rightarrow\infty \\ $$$${so}\:{finally} \\…
Question Number 111650 by mohammad17 last updated on 04/Sep/20 Commented by mohammad17 last updated on 04/Sep/20 $${pleas}\:{sir}\:{help}\:{me}\:\left({by}\:{the}\:{divisibility}\right) \\ $$ Commented by mohammad17 last updated on…
Question Number 111644 by weltr last updated on 04/Sep/20 $${y}'+{y}+\mathrm{7}=\mathrm{0} \\ $$ Commented by mohammad17 last updated on 04/Sep/20 $$ \\ $$$$\left({D}+\mathrm{1}\right){y}=−\mathrm{7} \\ $$$$ \\…
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