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Author: Tinku Tara

lim-x-x-2-3x-x-

Question Number 155316 by ZiYangLee last updated on 28/Sep/21 $$\underset{{x}\rightarrow\infty} {\mathrm{lim}}\:\left(\sqrt{{x}^{\mathrm{2}} +\mathrm{3}{x}}−{x}\right)=? \\ $$ Answered by puissant last updated on 28/Sep/21 $$=\underset{{x}\rightarrow\infty} {\mathrm{lim}}\frac{\mathrm{3}{x}}{\:{x}+\sqrt{{x}^{\mathrm{2}} +\mathrm{3}{x}}}\:=\:\underset{{x}\rightarrow\infty} {\mathrm{lim}}\frac{{x}}{{x}}×\frac{\mathrm{3}}{\mathrm{1}+\sqrt{\mathrm{1}+\frac{\mathrm{3}}{{x}}}}…

Question-155292

Question Number 155292 by peter frank last updated on 28/Sep/21 Answered by peter frank last updated on 30/Sep/21 $$\mathrm{R}=\mathrm{a}=\frac{\mathrm{v}^{\mathrm{2}} \mathrm{sin}\:\mathrm{2}\theta}{\mathrm{g}}=\frac{\mathrm{2v}^{\mathrm{2}} \mathrm{sin}\:\theta\mathrm{cos}\:\theta}{\mathrm{g}}…\left(\mathrm{i}\right) \\ $$$$\mathrm{H}=\mathrm{x}=\frac{\mathrm{v}^{\mathrm{2}} \mathrm{sin}\:^{\mathrm{2}} \theta}{\mathrm{2g}}…