Question Number 76536 by byaw last updated on 28/Dec/19 Commented by benjo 1/2 santuyy last updated on 28/Dec/19 $${good}\:{luck}\:{to}\:{sir} \\ $$ Answered by john santu…
Question Number 141972 by iloveisrael last updated on 25/May/21 Commented by Dwaipayan Shikari last updated on 25/May/21 $${x}°+\mathrm{20}°+\left(\mathrm{360}°−\mathrm{140}°\right)+\mathrm{90}°=\mathrm{360}° \\ $$$$\Rightarrow{x}°=\mathrm{30}° \\ $$ Commented by I…
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Question Number 10855 by Joel576 last updated on 27/Feb/17 $$\frac{\mathrm{3}}{\mathrm{1}!+\mathrm{2}!+\mathrm{3}!}\:+\:\frac{\mathrm{4}}{\mathrm{2}!+\mathrm{3}!+\mathrm{4}!}\:+\:\frac{\mathrm{5}}{\mathrm{3}!+\mathrm{4}!+\mathrm{5}!}\:+\:…\:+\:\frac{\mathrm{2016}}{\mathrm{2014}!+\mathrm{2015}!+\mathrm{2016}!}\:=\:? \\ $$ Answered by nume1114 last updated on 28/Feb/17 $$\:\:\:\:\frac{\mathrm{3}}{\mathrm{1}!+\mathrm{2}!+\mathrm{3}!}+\frac{\mathrm{4}}{\mathrm{2}!+\mathrm{3}!+\mathrm{4}!}+…+\frac{\mathrm{2016}}{\mathrm{2014}!+\mathrm{2015}!+\mathrm{2016}!} \\ $$$$=\underset{{n}=\mathrm{1}} {\overset{\mathrm{2014}} {\sum}}\frac{{n}+\mathrm{2}}{{n}!+\left({n}+\mathrm{1}\right)!+\left({n}+\mathrm{2}\right)!} \\…
Question Number 141890 by bekzodjumayev last updated on 24/May/21 Commented by bekzodjumayev last updated on 24/May/21 $$\boldsymbol{{Please}}\:\boldsymbol{{help}} \\ $$ Terms of Service Privacy Policy Contact:…
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Question Number 10583 by Saham last updated on 19/Feb/17 $$\mathrm{The}\:\mathrm{sum}\:\mathrm{of}\:\mathrm{the}\:\mathrm{4}^{\mathrm{th}\:} \:\mathrm{and}\:\mathrm{6}^{\mathrm{th}\:} \mathrm{terms}\:\mathrm{of}\:\mathrm{an}\:\mathrm{AP}\:\mathrm{is}\:\mathrm{42}.\:\mathrm{the}\:\mathrm{sum}\:\mathrm{of} \\ $$$$\mathrm{the}\:\mathrm{third}\:\mathrm{and}\:\mathrm{9th}\:\mathrm{terms}\:\mathrm{of}\:\mathrm{the}\:\mathrm{proression}\:\mathrm{is}\:\mathrm{52}.\:\mathrm{Find}\:\mathrm{the} \\ $$$$\mathrm{first}\:\mathrm{term}\:,\:\mathrm{the}\:\mathrm{common}\:\mathrm{difference}\:\mathrm{and}\:\mathrm{the}\:\mathrm{sum}\:\mathrm{of}\:\mathrm{the}\:\mathrm{first} \\ $$$$\mathrm{10}\:\mathrm{terms}\:\mathrm{of}\:\mathrm{the}\:\mathrm{progression}. \\ $$ Commented by Saham last updated…
Question Number 141640 by Willson last updated on 21/May/21 Answered by qaz last updated on 22/May/21 $$\underset{{k}=\mathrm{0}} {\overset{\infty} {\sum}}\frac{\mathrm{1}}{\mathrm{16}^{{k}} \left(\mathrm{8}{k}+{n}\right)} \\ $$$$=\underset{{k}=\mathrm{0}} {\overset{\infty} {\sum}}\frac{\mathrm{1}}{\mathrm{16}^{{k}} }\int_{\mathrm{0}}…
Question Number 141612 by Raxreedoroid last updated on 21/May/21 $$\underset{{k}=\mathrm{1}} {\overset{{n}−\mathrm{1}} {\sum}}\frac{\left(−\mathrm{1}\right)^{{k}+\mathrm{1}} {C}_{{k}−\mathrm{1}} ^{\:{n}−\mathrm{2}} }{\left({k}+\mathrm{1}\right)^{{x}} }=? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 10536 by ajfour last updated on 16/Feb/17 $${how}\:{can}\:{one}\:{rougly}\:\:{judge}\:\frac{\mathrm{548}}{\mathrm{879}}\:? \\ $$ Answered by ajfour last updated on 16/Feb/17 Terms of Service Privacy Policy Contact:…