Category: Relation and Functions

Question Number 91632 by mathmax by abdo last updated on 02/May/20 $$findaequivalentof{U}_n=1+\frac{1}{\sqrt{2}}+\frac{1}{\sqrt{3}}+\dots +\frac{1}{\sqrt{n}}$$ Commented by mathmax by abdo last updated on 02/May/20 $${we}\:{hsve}\:{U}_{{n}}…

Question Number 91624 by john santu last updated on 02/May/20 Commented by john santu last updated on 02/May/20 $$whattheanswer?$$ Commented by arcana last…

Question Number 91521 by jagoll last updated on 01/May/20 $$giventhatthe$$$$composite$$$$function{f}^2\left(x\right)=64x+45$$$$findf\left(x\right)$$ Commented by jagoll last updated on…

Question Number 156793 by alcohol last updated on 15/Oct/21 $${\int }_0^{\frac{\pi }{2}}\frac{sin2x}{2-{sin}^{2}2x}dx$$ Answered by FongXD last updated on 15/Oct/21 $$=\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}} \frac{\mathrm{sin2x}}{\mathrm{1}+\mathrm{cos}^{\mathrm{2}}…

Question Number 91085 by jagoll last updated on 28/Apr/20 $$f\left(x\right)=\lceil 2x-1\rceil$$$$f\left(3\right),f\left(4\right)=?$$ Commented by  M±th+et+s last updated on 28/Apr/20 $$if[\dots ]isceil$$$${f}\left(\mathrm{3}\right)=\lceil\mathrm{6}−\mathrm{1}\rceil=\lceil\mathrm{5}\rceil=\mathrm{5} \…