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Category: Algebra

2-4-5-4-3-2-20-4-3-2-20-12-2-8-16-

Question Number 57977 by Jaiden2019 last updated on 15/Apr/19 $$\mathrm{2}\left[\left(\mathrm{4}×\mathrm{5}\right)−\left(\mathrm{4}×\mathrm{3}\right)\right]=\mathrm{2}×\left[\mathrm{20}−\left(\mathrm{4}×\mathrm{3}\right)\right]=\mathrm{2}×\left[\left(\mathrm{20}−\mathrm{12}\right)\right]=\mathrm{2}×\mathrm{8}=\mathrm{16} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com

pi-2-pi-2-cosx-

Question Number 123509 by Jamshidbek2311 last updated on 26/Nov/20 $$\underset{−\frac{\pi}{}\mathrm{2}} {\overset{\frac{\pi}{\mathrm{2}}} {\int}}\mid{cosx}\mid=? \\ $$ Answered by bramlexs22 last updated on 26/Nov/20 $$=\:\underset{−\pi/\mathrm{2}} {\overset{\pi/\mathrm{2}} {\int}}\mid\mathrm{cos}\:{x}\mid\:{dx}\:=\:\mathrm{2}\underset{\mathrm{0}} {\overset{\pi/\mathrm{2}}…

let-P-x-1-ix-n-1-ni-with-x-real-and-n-integr-natural-1-find-the-roots-of-P-x-2-factorize-P-x-inside-C-x-3-factorize-P-x-inside-R-x-4-decompose-the-fraction-F-x-P-1-x-P-x-

Question Number 57947 by maxmathsup by imad last updated on 14/Apr/19 $${let}\:{P}\left({x}\right)=\left(\mathrm{1}+{ix}\right)^{{n}} −\mathrm{1}−{ni}\:\:\:\:{with}\:{x}\:{real}\:{and}\:{n}\:{integr}\:{natural} \\ $$$$\left.\mathrm{1}\right)\:{find}\:{the}\:{roots}\:{of}\:{P}\left({x}\right) \\ $$$$\left.\mathrm{2}\right)\:{factorize}\:{P}\left({x}\right)\:{inside}\:{C}\left[{x}\right] \\ $$$$\left.\mathrm{3}\right)\:{factorize}\:{P}\left({x}\right)\:{inside}\:{R}\left[{x}\right] \\ $$$$\left.\mathrm{4}\right)\:{decompose}\:{the}\:{fraction}\:{F}\left({x}\right)\:=\frac{{P}^{\left(\mathrm{1}\right)} \left({x}\right)}{{P}\left({x}\right)}\:{inside}\:{C}\left({x}\right) \\ $$$${P}^{\left(\mathrm{1}\right)} \:{is}\:{the}\:{derivative}\:{of}\:{P}\:.…