Menu Close

Category: Relation and Functions

Prove-that-the-sequence-a-n-1-n-1-n-is-decreasing-

Question Number 219090 by depressiveshrek last updated on 19/Apr/25 $$\mathrm{Prove}\:\mathrm{that}\:\mathrm{the}\:\mathrm{sequence}\:{a}_{{n}} =\frac{\mathrm{1}}{\:\sqrt[{{n}}]{{n}!}}\:\mathrm{is}\:\mathrm{decreasing}. \\ $$ Answered by Frix last updated on 19/Apr/25 $${n}\rightarrow\infty\:\Rightarrow\:{n}!\approx\left(\frac{{n}}{\mathrm{e}}\right)^{{n}} \sqrt{\mathrm{2}\pi{n}}\:\Rightarrow \\ $$$$\frac{\mathrm{1}}{\:\sqrt[{{n}}]{{n}!}}\approx\frac{\mathrm{e}}{\left(\mathrm{2}\pi{x}\right)^{\frac{\mathrm{1}}{\mathrm{2}{x}}} {x}}…

Question-218256

Question Number 218256 by mr W last updated on 03/Apr/25 Answered by efronzo1 last updated on 03/Apr/25 $$\:\:\mathrm{f}\left(\mathrm{3}\right)+\mathrm{f}\left(−\frac{\mathrm{1}}{\mathrm{2}}\right)=\:\mathrm{72} \\ $$$$\:\mathrm{f}\left(−\frac{\mathrm{1}}{\mathrm{2}}\right)+\:\mathrm{f}\left(\frac{\mathrm{2}}{\mathrm{3}}\right)=−\mathrm{12} \\ $$$$\:\mathrm{f}\left(\frac{\mathrm{2}}{\mathrm{3}}\right)+\:\mathrm{f}\left(\mathrm{3}\right)\:=\:\mathrm{16} \\ $$$$\:\:\mathrm{2}\left\{\mathrm{f}\left(\mathrm{3}\right)+\:\mathrm{f}\left(−\frac{\mathrm{1}}{\mathrm{2}}\right)+\:\mathrm{f}\left(\frac{\mathrm{2}}{\mathrm{3}}\right)\right\}\:=\:\mathrm{76} \\…

Find-the-largest-value-of-the-non-negative-integer-p-for-which-lim-x-1-px-sin-x-1-p-x-sin-x-1-1-1-x-1-x-1-4-

Question Number 216077 by MATHEMATICSAM last updated on 27/Jan/25 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{largest}\:\mathrm{value}\:\mathrm{of}\:\mathrm{the}\:\mathrm{non}\:\mathrm{negative} \\ $$$$\mathrm{integer}\:{p}\:\mathrm{for}\:\mathrm{which}\: \\ $$$$\underset{{x}\rightarrow\mathrm{1}} {\mathrm{lim}}\:\left\{\frac{−\:{px}\:+\:\mathrm{sin}\left({x}\:−\:\mathrm{1}\right)\:+\:{p}}{{x}\:+\:\mathrm{sin}\left({x}\:−\:\mathrm{1}\right)\:−\:\mathrm{1}}\right\}^{\frac{\mathrm{1}\:−\:{x}}{\mathrm{1}\:−\:\sqrt{{x}}}} \:=\:\frac{\mathrm{1}}{\mathrm{4}}\:. \\ $$ Answered by mahdipoor last updated on 27/Jan/25…

6-7-7-6-

Question Number 214644 by asifumer658 last updated on 14/Dec/24 $$\frac{−\mathrm{6}}{\mathrm{7}}/\frac{−\mathrm{7}}{\mathrm{6}} \\ $$ Answered by Frix last updated on 17/Dec/24 $$\frac{−\mathrm{6}}{\mathrm{7}}/\frac{−\mathrm{7}}{\mathrm{6}}=\left(−\frac{\mathrm{6}}{\mathrm{7}}\right)/\left(−\frac{\mathrm{7}}{\mathrm{7}}\right)=\left(−\frac{\mathrm{6}}{\mathrm{7}}\right)×\left(−\frac{\mathrm{6}}{\mathrm{7}}\right)= \\ $$$$=\frac{\mathrm{36}}{\mathrm{49}} \\ $$ Terms…