Category: Relation and Functions

Question Number 24227 by tawa tawa last updated on 14/Nov/17 Commented by tawa tawa last updated on 14/Nov/17 $$\mathrm{please}\mathrm{help}.$$ Answered by $@ty@m last…

Question Number 89716 by abdomathmax last updated on 18/Apr/20 $$calculate{A}_n={\int }_0^{\mathrm{\infty }}{e}^{-n\left[x\right]}sin\left(\frac{\left[x\right]}{n}\right)dx$$$$findnatureof\mathrm{\Sigma }{n}^2{A}_n$$ Terms of Service Privacy Policy Contact:…

Question Number 23922 by chernoaguero@gmail.com last updated on 09/Nov/17 $$\mathbf{if}\mathbf{f}\left(\mathbf{x}\right)=2^{\mathbf{x}}$$$$\mathbf{show}\mathbf{that}\mathbf{f}(\mathbf{x}+3)-\mathbf{f}(\mathbf{x}-1)=\frac{15}{2}\mathbf{f}\left(\mathbf{x}\right)$$ Answered by $@ty@mlastupdatedon10/Nov/17$${f}\left({x}+\mathrm{3}\right)=\mathrm{2}^{{x}+\mathrm{3}} =\mathrm{2}^{{x}} .\mathrm{2}^{\mathrm{3}} =\mathrm{8}.\mathrm{2}^{{x}}…

Question Number 23785 by tawa tawa last updated on 06/Nov/17 $$\mathrm{A}\mathrm{function}\mathrm{f}\mathrm{is}\mathrm{define}\mathrm{by}\mathrm{f}:\to 3-2\mathrm{sinx},\mathrm{for}0⩽\mathrm{x}⩽360$$$$\mathrm{find}\mathrm{the}\mathrm{range}\mathrm{of}\mathrm{f}$$ Answered by mrW1 last updated on 06/Nov/17 $$\sin x\in [-1,+1]$$$${f}=\mathrm{3}−\mathrm{2sin}\:{x}\:\in\left[\mathrm{1},\mathrm{5}\right]…

Question Number 89313 by abdomathmax last updated on 16/Apr/20 $$findthesum\sum _{n=1}^{\mathrm{\infty }}\frac{1}{n^2\times 3^n}$$ Commented by mathmax by abdo last updated on 19/Apr/20…