Question Number 204978 by SANOGO last updated on 04/Mar/24 Answered by witcher3 last updated on 04/Mar/24 $$\mathrm{Soit}\:\mathrm{U}_{\mathrm{n}} ^{\mathrm{k}} \:\mathrm{une}\:\mathrm{suite}\:\mathrm{de}\:\mathrm{cauchy}\:\:\mathrm{Dans}\:\mathrm{C}_{\mathrm{0}} \\ $$$$\forall\mathrm{k}\:\:\mathrm{U}_{\mathrm{n}} ^{\mathrm{k}} \in\mathrm{C}_{} ^{\mathbb{N}} ;\underset{\mathrm{n}\rightarrow\infty}…
Question Number 204961 by naka3546 last updated on 04/Mar/24 $$\int\:\frac{\mathrm{1}}{\mathrm{1}+\mathrm{cot}\:\mathrm{3}{x}}\:{dx}\:=\:\: \\ $$ Answered by TonyCWX08 last updated on 04/Mar/24 $${let}\:{t}\:=\:\mathrm{3}{x} \\ $$$${dt}\:=\:\mathrm{3}\:{dx} \\ $$$$ \\…
Question Number 204963 by TonyCWX08 last updated on 04/Mar/24 $${x}^{\mathrm{2}} +{z}^{\mathrm{2}} ={y}^{\mathrm{2}} +{z}^{\mathrm{2}} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 204948 by TonyCWX08 last updated on 03/Mar/24 $${prove}\: \\ $$$${a}^{\mathrm{2}} +{b}^{\mathrm{2}} +{c}^{\mathrm{2}} +\sqrt[{\mathrm{3}}]{{abc}}\geqslant\mathrm{4} \\ $$$${if} \\ $$$${ab}+{bc}+{ac}=\mathrm{3} \\ $$ Commented by TonyCWX08 last…
Question Number 204957 by CrispyXYZ last updated on 03/Mar/24 $$\mathrm{2}×\mathrm{2}\:\mathrm{matrix}\:\boldsymbol{\mathrm{A}}\:\mathrm{and}\:\boldsymbol{\mathrm{B}}\:\mathrm{satisfy}\:\mathrm{that} \\ $$$$\boldsymbol{\mathrm{AB}}+\boldsymbol{\mathrm{A}}=\boldsymbol{\mathrm{BA}}+\boldsymbol{\mathrm{B}}. \\ $$$$\mathrm{Prove}\:\mathrm{that}\:\left(\boldsymbol{\mathrm{A}}−\boldsymbol{\mathrm{B}}\right)^{\mathrm{2}} =\boldsymbol{\mathrm{O}}. \\ $$ Answered by Rajpurohith last updated on 04/Mar/24 $${Need}\:{not}\:{hold}\:{true}!…
Question Number 204947 by tri26112004 last updated on 03/Mar/24 $${f}'\left({x}\right)+\mathrm{4}{x}−\mathrm{6}{x}.{e}^{{x}^{\mathrm{2}} −{f}\left({x}\right)−\mathrm{1}} =\mathrm{0} \\ $$$${f}\left({x}\right)=¿ \\ $$ Answered by mr W last updated on 03/Mar/24 $${let}\:{t}={x}^{\mathrm{2}}…
Question Number 204851 by ibrahimabdullayev last updated on 28/Feb/24 Answered by A5T last updated on 29/Feb/24 $$\mathrm{5}^{\mathrm{2}} =\mathrm{6}^{\mathrm{2}} +\mathrm{5}^{\mathrm{2}} −\mathrm{2}×\mathrm{6}×\mathrm{5}{cos}\angle{ACB}\Rightarrow{cos}\angle{ACB}=\frac{\mathrm{3}}{\mathrm{5}} \\ $$$$\mathrm{6}^{\mathrm{2}} =\mathrm{5}^{\mathrm{2}} +\mathrm{5}^{\mathrm{2}} −\mathrm{2}×\mathrm{5}×\mathrm{5}{cos}\angle{ABC}\Rightarrow{cos}\angle{ABC}=\frac{\mathrm{7}}{\mathrm{25}}…
Question Number 204783 by naka3546 last updated on 27/Feb/24 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 204800 by sonukgindia last updated on 27/Feb/24 Answered by mr W last updated on 27/Feb/24 Commented by mr W last updated on 27/Feb/24…
Question Number 204715 by 073 last updated on 26/Feb/24 $${prove}\:{that} \\ $$$$\overset{\mathrm{1}} {\int}_{\mathrm{0}} \frac{{ln}^{\mathrm{2}} \left(\mathrm{1}−{x}\right)}{{x}}{dx}=\mathrm{2}\zeta\left(\mathrm{3}\right) \\ $$$$ \\ $$ Answered by witcher3 last updated on…