Question Number 104998 by mathocean1 last updated on 25/Jul/20 Commented by mathocean1 last updated on 25/Jul/20 $${ABCD}\:{and}\:{DEFG}\:{are}\:{squares}. \\ $$$${AB}=\mathrm{2}{DE}. \\ $$$${Determinate}\:\alpha. \\ $$ Commented by…
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Question Number 170522 by leicianocosta last updated on 25/May/22 Answered by FelipeLz last updated on 26/May/22 $$\left.\mathrm{1}\right) \\ $$$$\:\:\:\:{f}:\:{A}\rightarrow{B}\:\wedge\:{g}:\:{B}\rightarrow{C}\:\Rightarrow\:{g}\circ{f}:\:{A}\rightarrow{C} \\ $$$$\:\:\:\:{g}\circ{f}\:=\:{g}\left({f}\left({x}\right)\right)\:=\:\mathrm{2}{f}\left({x}\right)+\mathrm{1}\:=\:\mathrm{2}{x}−\mathrm{1} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\mathbb{P}\:=\:\left\{\left({a},\:{c}\right)\:\in\:{A}×{C}\:\mid\:{c}\:=\:{g}\left({f}\left({a}\right)\right)\right\} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:{A}\:=\:\left\{\mathrm{1},\:\mathrm{2},\:\mathrm{3}\right\}\:\Rightarrow\:\begin{cases}{{g}\left({f}\left(\mathrm{1}\right)\right)\:=\:\mathrm{1}}\\{{g}\left({f}\left(\mathrm{2}\right)\right)\:=\:\mathrm{3}}\\{{g}\left({f}\left(\mathrm{3}\right)\right)\:=\:\mathrm{5}}\end{cases}…
Question Number 104984 by mathocean1 last updated on 25/Jul/20 Commented by mathocean1 last updated on 25/Jul/20 $${Here}\:{is}\:{the}\:{variation}\:{of}\:{f}\left({x}\right)\:{in} \\ $$$$\left[−\mathrm{3};\mathrm{2}\right].\:{the}\:{function}\:{g}\:{is}\:{such}\:{that} \\ $$$$\forall\:{x}\:\in\left[−\mathrm{3};\mathrm{2}\right]\:,\:{g}'\left({x}\right)=\frac{{f}\left({x}\right)}{{x}^{\mathrm{2}} }. \\ $$$${Choose}\:{the}\:{correct}\:{answer}\:{about} \\…
Question Number 104972 by 1549442205PVT last updated on 25/Jul/20 $$ \\ $$$$\mathrm{In}\:\mathrm{the}\:\mathrm{a}\:\:\mathrm{sport}\:\mathrm{camp},\:\mathrm{65\%}\:\mathrm{children}\:\mathrm{know} \\ $$$$\mathrm{playing}\:\mathrm{the}\:\mathrm{football},\mathrm{70\%}−\mathrm{in}\:\mathrm{voleyball},\mathrm{75\%}−\mathrm{in} \\ $$$$\mathrm{basketball}.\mathrm{What}\:\mathrm{is}\:\mathrm{least}\:\mathrm{number}\:\mathrm{of}\:\mathrm{children}\:\mathrm{who} \\ $$$$\mathrm{know}\:\mathrm{playing}\:\mathrm{all}\:\mathrm{above}\:\mathrm{three}\:\mathrm{sport}\:\mathrm{games}? \\ $$$$\left(\mathrm{Answer}\:\mathrm{10\%}\right) \\ $$ Answered by mr…
Question Number 170497 by MathsFan last updated on 25/May/22 $${Given}\:{that}\:{R}\:{is}\:{at}\:{the}\:{point}\:{with} \\ $$$${positive}\:{vector}\:\mathrm{4}−\mathrm{2}{j}\:{when}\:{t}=\mathrm{2} \\ $$$${Find}\:{the}\:{position}\:{vector}\:{of}\:{R} \\ $$$$\:{when}\:{t}=\mathrm{3} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 170488 by leicianocosta last updated on 25/May/22 Answered by FelipeLz last updated on 25/May/22 $$\left.\mathrm{1}\right)\: \\ $$$$\:\:\:\:{a}\left({t}\right)\:=\:\frac{{d}}{{dt}}\left[{v}\left({t}\right)\right]\:=\:\frac{{d}}{{dt}}\left[\mathrm{2}+\mathrm{3}{t}+\mathrm{5}{t}^{\mathrm{2}} \right]\:=\:\mathrm{3}+\mathrm{10}{t} \\ $$$$\:\:\:\:{a}\left(\mathrm{5}\right)\:=\:\mathrm{53}\:{m}\centerdot{s}^{−\mathrm{2}} \\ $$$$\left.\mathrm{2}\right) \\…
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