Category: Set Theory

Question Number 24930 by 8006539252 last updated on 29/Nov/17 $$a+a=$$ Answered by 8006539252 last updated on 29/Nov/17 $$2a$$ Terms of Service…

Question Number 155277 by amin96 last updated on 28/Sep/21 Answered by Rasheed.Sindhi last updated on 28/Sep/21 $$(big-square-area)-(non-shadow-area)$$$$big-square-area=8^2=64sq-units$$$$\underset{-}{Non-shadow-area}$$$$\mathrm{A}:{two}-{triangles}=\mathrm{2}\left(\frac{\mathrm{1}}{\mathrm{2}}.\mathrm{1}.\mathrm{2}\right)=\mathrm{2}\:{unit}^{\mathrm{2}}…

Question Number 88761 by M±th+et£s last updated on 12/Apr/20 $$if{a}_n=\frac{n!}{n^n{e}^{-n}\sqrt{2\pi n}}$$$$and{b}_n=\frac{\left(2n\right)!\sqrt{n}}{4^n{(n!)}^2}$$$$\text{Double subscripts: use braces to clarify}$$$${find}\:\underset{{n}\rightarrow\infty} {{lim}b}_{{n}}…

Question Number 22161 by j.masanja06@gmail.com last updated on 12/Oct/17 $$Thestudentswereaskedwhether$$$$theyhaddictionary\left(D\right)orthesau$$$$rus\left(T\right)intheirroom.theresults$$$$showedthat650studentshaddict$$$$ionary,150didnothaddictionary,$$$$175hadathesaurus,and50had$$$$neitheradictionarynorathesaur$$$${us},{fimd}\:{the}\:{number}\:{of}\:{student}\:{who} \…

Question Number 21588 by dioph last updated on 28/Sep/17 $$\mathrm{Show}\mathrm{that}\mathrm{if}G\mathrm{is}\mathrm{a}\mathrm{finite}\mathrm{group}\mathrm{of}$$$$\mathrm{even}\mathrm{order},\mathrm{then}G\mathrm{has}\mathrm{an}\mathrm{odd}$$$$\mathrm{number}\mathrm{of}\mathrm{elements}\mathrm{of}\mathrm{order}2.$$ Commented by arcana last updated on 02/Dec/18 $$\mathrm{los}\:\mathrm{elementos}\:\mathrm{son}\:\mathrm{subgrupos}\:\mathrm{de}\:\mathrm{G}? \…