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Category: Algebra

Question-148113

Question Number 148113 by mathdanisur last updated on 25/Jul/21 Answered by liberty last updated on 25/Jul/21 $$\:{Hatched}\:{area}\:=\:\frac{\mathrm{1}}{\mathrm{2}}\left(\mathrm{8}\right)^{\mathrm{2}} \left(\frac{\mathrm{1}}{\mathrm{2}}\sqrt{\mathrm{3}}\right)−\frac{\mathrm{1}}{\mathrm{2}}\pi\left(\mathrm{4}\right)^{\mathrm{2}} \\ $$$$=\mathrm{16}\sqrt{\mathrm{3}}−\mathrm{8}\pi \\ $$ Commented by mathdanisur…

x-2-x-3-0-x-R-x-

Question Number 148109 by Opredador last updated on 25/Jul/21 $$\:\boldsymbol{\mathrm{x}}^{\sqrt{\mathrm{2}}} \:+\:\boldsymbol{\mathrm{x}}\:−\:\mathrm{3}\:=\:\mathrm{0} \\ $$$$\: \\ $$$$\:\boldsymbol{\mathrm{x}}\:\in\:\mathbb{R},\:\:\boldsymbol{\mathrm{x}}\:=\:? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com

if-f-x-f-x-1-x-find-f-x-

Question Number 82570 by jagoll last updated on 22/Feb/20 $${if}\:{f}\left({x}\right)\:=\:{f}\left({x}+\mathrm{1}\right)\:−\:{x}\: \\ $$$${find}\:{f}\left({x}\right)\: \\ $$ Commented by Tony Lin last updated on 22/Feb/20 $${f}\left({x}+\mathrm{1}\right)−{f}\left({x}\right)={x} \\ $$$$\Rightarrow{f}\left(\mathrm{0}\right)={f}\left(\mathrm{1}\right)…

a-polynomial-gives-a-remainder-of-x-1-when-divided-by-x-2-and-a-remainder-of-1-when-divided-by-x-1-what-is-the-remainder-when-the-polynomial-divided-by-x-2-x-1-

Question Number 82561 by jagoll last updated on 22/Feb/20 $${a}\:{polynomial}\:{gives}\:{a}\:{remainder} \\ $$$${of}\:−{x}−\mathrm{1}\:{when}\:{divided}\:{by}\:{x}^{\mathrm{2}.} \\ $$$${and}\:\:{a}\:{remainder}\:{of}\:−\mathrm{1}\:{when}\: \\ $$$${divided}\:{by}\:{x}−\mathrm{1}\:.\:{what}\:{is}\:{the}\: \\ $$$${remainder}\:{when}\:{the}\:{polynomial} \\ $$$${divided}\:{by}\:{x}^{\mathrm{2}} \left({x}−\mathrm{1}\right)\:? \\ $$ Answered by…

r-1-3-2r-1-

Question Number 17019 by tawa tawa last updated on 29/Jun/17 $$\underset{\mathrm{r}\:=\:\mathrm{1}} {\overset{\mathrm{3}} {\sum}}\:\mathrm{2r}\:−\:\mathrm{1}\:\:=\:\:? \\ $$ Answered by arnabpapu550@gmail.com last updated on 29/Jun/17 $$=\left(\mathrm{2}×\mathrm{1}−\mathrm{1}\right)+\left(\mathrm{2}×\mathrm{2}−\mathrm{1}\right)+\left(\mathrm{2}×\mathrm{3}−\mathrm{1}\right) \\ $$$$=\mathrm{1}+\mathrm{3}+\mathrm{5}=\mathrm{9}…

Find-the-cube-root-of-55-63-2-

Question Number 17018 by tawa tawa last updated on 29/Jun/17 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{cube}\:\mathrm{root}\:\mathrm{of}:\:\:\:\mathrm{55}\:+\:\mathrm{63}\:\sqrt{\mathrm{2}} \\ $$ Commented by prakash jain last updated on 29/Jun/17 $$\left({a}+{b}\sqrt{\mathrm{2}}\right)^{\mathrm{3}} =\mathrm{55}+\mathrm{63}\sqrt{\mathrm{2}} \\ $$$${a}^{\mathrm{3}}…

cos-n-x-sinx-dx-

Question Number 148077 by mathdanisur last updated on 25/Jul/21 $$\int\:\frac{{cos}^{\boldsymbol{{n}}} {x}}{{sinx}}\:{dx}\:=\:? \\ $$ Answered by Olaf_Thorendsen last updated on 26/Jul/21 $$\mathrm{I}_{{n}} \left({x}\right)\:=\:\int\frac{\mathrm{cos}^{{n}} {x}}{\mathrm{sin}{x}}\:{dx} \\ $$$$…