Question Number 156128 by aaaspots last updated on 08/Oct/21 $$\:{f}:{X}\rightarrow{Y} \\ $$$${f}\left({E}\backslash{F}\right)={f}\left({E}\right)\backslash{f}\left({F}\right)\Rightarrow{f}\:{is}\:\mathrm{1}\:{to}\:\mathrm{1} \\ $$$$ \\ $$$${I}\:{think}\:{it}\:{is}\:{not}\:{true}\: \\ $$$${since}\:{let}\:{x}\mathrm{1}\:{x}\mathrm{2}\:{x}\mathrm{3}\in{E}\:,{x}\mathrm{3}\:{x}\mathrm{4}\in{F}, \\ $$$${and}\:{f}\left({x}\mathrm{1}\right)={f}\left(\:{x}\mathrm{2}\right)\:{it}\:{will}\:{be}\:{not}\:{true}. \\ $$$$ \\ $$$${but}\:{my}\:{friend}\:{say}\:{by}\:\sim{q}\Rightarrow\sim{p} \\…
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Question Number 156093 by otchereabdullai@gmail.com last updated on 07/Oct/21 Answered by otchereabdullai@gmail.com last updated on 07/Oct/21 Commented by otchereabdullai@gmail.com last updated on 07/Oct/21 $$\mathrm{please}\:\mathrm{i}\:\mathrm{looked}\:\mathrm{at}\:\mathrm{it}\:\mathrm{this}\:\mathrm{way}\:\mathrm{please}\: \\…
Question Number 90555 by naka3546 last updated on 24/Apr/20 Commented by jagoll last updated on 25/Apr/20 $${my}\:{way} \\ $$$${AC}\:=\:{w}\:,\:{BD}\:=\:{x} \\ $$$${w}^{\mathrm{2}} \:=\:\mathrm{4}{r}^{\mathrm{2}} −\mathrm{144} \\ $$$${x}^{\mathrm{2}}…
Question Number 156080 by SANOGO last updated on 07/Oct/21 $$\int{e}^{−\mathrm{2}{x}} {cos}\left({e}^{−{x}} \right){dx} \\ $$ Commented by ARUNG_Brandon_MBU last updated on 07/Oct/21 $${u}={e}^{−{x}} \Rightarrow\:{du}=−{e}^{−{x}} {dx}= \\…
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Question Number 156047 by otchereabdullai@gmail.com last updated on 07/Oct/21 Commented by otchereabdullai@gmail.com last updated on 07/Oct/21 $$\mathrm{Prof}\:\mathrm{please}\:\mathrm{look}\:\mathrm{at}\:\mathrm{this}\:\mathrm{one}\:\mathrm{too}\:\mathrm{for}\:\mathrm{me} \\ $$ Commented by mr W last updated…