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Obtain-the-general-term-of-each-of-the-following-sequences-if-obtainable-in-terms-of-or-any-other-form-of-notation-A-1-1-n-1-2n-1-n-1-2n-1-3n-1-4n-1-n-1-2n-1-3n-1-4n-1-5n-1

Question Number 1105 by Yugi last updated on 14/Jun/15 $${Obtain}\:{the}\:{general}\:{term}\:{of}\:{each}\:{of}\:{the}\:{following}\:{sequences}\:\left({if}\:{obtainable}\right) \\ $$$${in}\:{terms}\:{of}\:\Pi\:\left({or}\:{any}\:{other}\:{form}\:{of}\:{notation}\right): \\ $$$$\left.{A}\right)\:\:\:\mathrm{1},\left(\mathrm{1}−{n}\right)\left(\mathrm{1}−\mathrm{2}{n}\right)\:,\:\left(\mathrm{1}−{n}\right)\left(\mathrm{1}−\mathrm{2}{n}\right)\left(\mathrm{1}−\mathrm{3}{n}\right)\left(\mathrm{1}−\mathrm{4}{n}\right)\:,\:\left(\mathrm{1}−{n}\right)\left(\mathrm{1}−\mathrm{2}{n}\right)\left(\mathrm{1}−\mathrm{3}{n}\right)\left(\mathrm{1}−\mathrm{4}{n}\right)\left(\mathrm{1}−\mathrm{5}{n}\right)\left(\mathrm{1}−\mathrm{6}{n}\right),\:… \\ $$$$\left.{B}\right)\:\:\:\mathrm{1},\:\mathrm{1}−{n}\:,\:\left(\mathrm{1}−{n}\right)\left(\mathrm{1}−\mathrm{2}{n}\right)\left(\mathrm{1}−\mathrm{3}{n}\right)\:,\:\left(\mathrm{1}−{n}\right)\left(\mathrm{1}−\mathrm{2}{n}\right)\left(\mathrm{1}−\mathrm{3}{n}\right)\left(\mathrm{1}−\mathrm{4}{n}\right)\left(\mathrm{1}−\mathrm{5}{n}\right),\:… \\ $$ Commented by prakash jain last updated on…

lim-x-4-2-x-x-1-3-2-8-x-x-

Question Number 66640 by hmamarques1994@gmail.com last updated on 18/Aug/19 $$\: \\ $$$$\:\underset{\boldsymbol{{x}}\rightarrow\mathrm{4}} {\boldsymbol{{lim}}}\:\frac{\sqrt[{\mathrm{3}}]{\mathrm{2}+\boldsymbol{{x}}\sqrt{\boldsymbol{{x}}}}−\mathrm{2}}{\mathrm{8}−\boldsymbol{{x}}\sqrt{\boldsymbol{{x}}}}=? \\ $$$$\: \\ $$ Commented by kaivan.ahmadi last updated on 18/Aug/19 $${x}\rightarrow\mathrm{4}^{+}…

can-a-function-f-be-such-that-for-a-R-f-X-a-R-a-a-X-X-R-R-gt-0-lim-x-a-f-x-lim-x-a-f-x-lt-

Question Number 1093 by 123456 last updated on 12/Jun/15 $$\mathrm{can}\:\mathrm{a}\:\mathrm{function}\:{f}\:\mathrm{be}\:\mathrm{such}\:\mathrm{that}\:\mathrm{for}\:{a}\in\mathbb{R} \\ $$$${f}:\mathrm{X}/\left\{{a}\right\}\rightarrow\mathbb{R},\left({a}−\delta,{a}+\delta\right)\in\mathrm{X},\mathrm{X}\subset\mathbb{R},\delta\in\mathbb{R},\delta>\mathrm{0} \\ $$$$\underset{{x}\rightarrow{a}} {\mathrm{lim}}\:{f}\left({x}\right)=\infty \\ $$$$\underset{{x}\rightarrow{a}} {\mathrm{lim}}\:\mid{f}'\left({x}\right)\mid<\infty \\ $$ Answered by prakash jain last…

Solve-x-2-x-4-1-x-

Question Number 132150 by mohammad17 last updated on 11/Feb/21 $${Solve}:\frac{\mid{x}+\mathrm{2}\mid}{{x}−\mathrm{4}}\leqslant\frac{\mathrm{1}}{\mid{x}\mid} \\ $$ Answered by benjo_mathlover last updated on 11/Feb/21 $$\mathrm{case}\left(\mathrm{1}\right)\:\mathrm{x}>\mathrm{0}\:\Rightarrow\:\frac{\mathrm{x}+\mathrm{2}}{\mathrm{x}−\mathrm{4}}\:−\frac{\mathrm{1}}{\mathrm{x}}\leqslant\mathrm{0} \\ $$$$\:\frac{\mathrm{x}^{\mathrm{2}} +\mathrm{2x}−\mathrm{x}+\mathrm{4}}{\mathrm{x}\left(\mathrm{x}−\mathrm{4}\right)}\leqslant\mathrm{0}\:;\:\frac{\mathrm{x}^{\mathrm{2}} +\mathrm{x}+\mathrm{4}}{\mathrm{x}\left(\mathrm{x}−\mathrm{4}\right)}\leqslant\mathrm{0} \\…