Category: Arithmetic

Question Number 9847 by 0942679167 last updated on 07/Jan/17 Commented by prakash jain last updated on 08/Jan/17 $$\mathrm{Can}\mathrm{u}\mathrm{please}\mathrm{type}\mathrm{the}\mathrm{question}$$$$\mathrm{image}\mathrm{is}\mathrm{not}\mathrm{readble}.$$$$\mathrm{Or}\mathrm{use}\mathrm{app}\mathrm{like}\mathrm{camscanner}\mathrm{to}$$$$\mathrm{take}\:\mathrm{the}\:\mathrm{image} \…

Question Number 75327 by TawaTawa last updated on 09/Dec/19 $$\mathrm{If}{\mathrm{T}}_{\mathrm{n}+1}=1+\frac{1}{2}{\mathrm{T}}_{\mathrm{n}}$$$$\mathrm{Find}\mathrm{a}\mathrm{formular}\mathrm{for}{\mathrm{T}}_{\mathrm{n}}\mathrm{in}\mathrm{terms}\mathrm{of}\mathrm{n}$$$$\mathrm{and}\mathrm{find}\mathrm{the}\mathrm{sum}\mathrm{of}\mathrm{first}\mathrm{n}\mathrm{terms}$$ Commented by malwaan last updated on 11/Dec/19…

Question Number 9752 by tawakalitu last updated on 30/Dec/16 Answered by mrW last updated on 31/Dec/16 $$\mathrm{let}{\mathrm{a}}_1\mathrm{be}\mathrm{the}\mathrm{first}\mathrm{term}\mathrm{and}$$$$\mathrm{d}\mathrm{the}\mathrm{common}\mathrm{difference}\mathrm{of}\mathrm{the}\mathrm{A}.\mathrm{P}.$$$$$$$$\mathrm{N}=\frac{\left[\mathrm{2a}_{\mathrm{1}} +\left(\mathrm{n}−\mathrm{1}\right)\mathrm{d}\right]×\mathrm{n}}{\mathrm{2}}…

Question Number 9517 by Joel575 last updated on 12/Dec/16 $$f\left(1\right)+f\left(2\right)+f\left(3\right)+\dots +f\left(n\right)=n^2.f\left(n\right)$$$$n>1;f\left(1\right)=2016$$$$\mathrm{So},f\left(2016\right)=?$$ Commented by sou1618 last updated on 12/Dec/16 $$…

Question Number 9460 by tawakalitu last updated on 09/Dec/16 Answered by sou1618 last updated on 09/Dec/16 $$\sqrt{11-2}=\sqrt{10+1-2}=\sqrt{9}=3$$$$\sqrt{1111-22}=\sqrt{1000+100+10+1-20-2}=\sqrt{1089}=33$$$$\dots \dots$$$${X}=\sqrt{\mathrm{1111}……\mathrm{11}_{\mathrm{2000}{digits}} −\mathrm{22}…\mathrm{2}_{\mathrm{1000}{digits}} }…