Question Number 37890 by abdo mathsup 649 cc last updated on 19/Jun/18 $${calculate}\:{A}_{{n}} =\:\sum_{{k}=\mathrm{0}} ^{{n}} \left(−\mathrm{1}\right)^{{k}} \left(\mathrm{2}{k}+\mathrm{3}\right)\:{interms}\:{of}\:{n} \\ $$ Commented by prof Abdo imad last…
Question Number 168956 by mnjuly1970 last updated on 22/Apr/22 $$ \\ $$$$\:\:\:\:{solve} \\ $$$$\:\:\lfloor\:{x}\:\rfloor\:+\:\lfloor\:\frac{{x}}{\mathrm{6}}\:\rfloor\:=\frac{\mathrm{2}}{\mathrm{3}}\:{x} \\ $$$$ \\ $$ Answered by aleks041103 last updated on 22/Apr/22…
Question Number 37885 by abdo mathsup 649 cc last updated on 19/Jun/18 $${find}\:\:\:\prod_{{k}=\mathrm{1}} ^{{n}} \:{cos}\left(\frac{{k}\pi}{\mathrm{2}{n}+\mathrm{1}}\right)\:\:{and}\:\prod_{{k}=\mathrm{1}} ^{{n}} \:{sin}\left(\frac{{k}\pi}{\mathrm{2}{n}+\mathrm{1}}\right) \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 168921 by Shrinava last updated on 21/Apr/22 Answered by mr W last updated on 22/Apr/22 Commented by Tawa11 last updated on 22/Apr/22 $$\mathrm{Great}\:\mathrm{sir}.…
Question Number 168881 by Eulerian last updated on 20/Apr/22 $$\:\mathrm{sin}\left(\pi\sqrt{\mathrm{ix}}\right)\:+\:\mathrm{sinh}\left(\pi\sqrt{\mathrm{ix}}\right)\:=\:\mathrm{0} \\ $$$$\: \\ $$$$\:\mathrm{Find}\:\mathrm{all}\:\mathrm{the}\:\mathrm{real}\:\mathrm{value}/\mathrm{s}\:\mathrm{of}\:\mathrm{x}. \\ $$ Answered by MJS_new last updated on 20/Apr/22 $$\mathrm{sin}\:{t}\:+\mathrm{sinh}\:{t}\:=\mathrm{0}\:\Rightarrow\:{t}=\mathrm{0} \\…
Question Number 103346 by harckinwunmy last updated on 14/Jul/20 Commented by harckinwunmy last updated on 14/Jul/20 $$\mathrm{please}\:\mathrm{help} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 103345 by harckinwunmy last updated on 14/Jul/20 Commented by harckinwunmy last updated on 14/Jul/20 $$\mathrm{please}\:\mathrm{help} \\ $$ Commented by Dwaipayan Shikari last updated…
Question Number 168858 by Shrinava last updated on 19/Apr/22 $$\mathrm{Simplify}: \\ $$$$\mathrm{1}.\:\left(\mathrm{A}\:+\:\mathrm{B}\right)\left(\mathrm{A}\:+\:\overline {\mathrm{B}}\right) \\ $$$$\mathrm{2}.\:\left(\overline {\mathrm{A}}\:+\:\mathrm{B}\right)\left(\overline {\mathrm{A}}\:+\:\overline {\mathrm{B}}\right) \\ $$ Answered by Rasheed.Sindhi last updated…
Question Number 168859 by Shrinava last updated on 19/Apr/22 $$\mathrm{Prove}\:\mathrm{that}: \\ $$$$\mathrm{1}.\:\overline {\mathrm{A}\:+\:\mathrm{B}}\:=\:\overline {\mathrm{A}}\:\centerdot\:\overline {\mathrm{B}}\:\:\:,\:\:\:\overline {\mathrm{AB}}\:=\:\overline {\mathrm{A}}\:+\:\overline {\mathrm{B}} \\ $$$$\mathrm{2}.\:\left(\mathrm{A}\:+\:\mathrm{C}\right)\left(\mathrm{B}\:+\:\mathrm{C}\right)\:=\:\mathrm{AB}\:+\:\mathrm{C} \\ $$ Answered by Rasheed.Sindhi…
Question Number 103310 by Quvonchbek last updated on 14/Jul/20 Commented by Quvonchbek last updated on 14/Jul/20 $$\boldsymbol{{prove}} \\ $$ Answered by 1549442205 last updated on…