Question Number 24111 by ajfour last updated on 12/Nov/17 Commented by ajfour last updated on 12/Nov/17 $${Solution}\:{to}\:{Q}.\:\mathrm{24100} \\ $$ Answered by ajfour last updated on…
Question Number 89560 by peter frank last updated on 18/Apr/20 $${without}\:{use}\:{intergration} \\ $$$${by}\:{party} \\ $$$$\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{4}}} {e}^{\theta} \mathrm{cos}\:\mathrm{2}\theta\:{d}\theta \\ $$ Commented by mathmax by abdo…
Question Number 89493 by M±th+et£s last updated on 17/Apr/20 Commented by M±th+et£s last updated on 17/Apr/20 $${what}\:{is}\:{the}\:{solution}\:{if}\:{the}\:{cable}\:{was} \\ $$$$\mathrm{200}\:{m}\:{long}? \\ $$ Terms of Service Privacy…
Question Number 23564 by NECx last updated on 01/Nov/17 $${The}\:{curved}\:{surface}\:{area}\:{of}\:{a}\:{cone} \\ $$$${is}\:\mathrm{21}{cm}^{\mathrm{2}} \:.{Calculate}\:{the}\:{curved} \\ $$$${surface}\:{area}\:{of}\:{a}\:{similar}\:{cone} \\ $$$${whose}\:{height}\:{is}\:\mathrm{4}\:{times}\:{the}\:{other}. \\ $$ Commented by NECx last updated on…
Question Number 88997 by jagoll last updated on 14/Apr/20 Commented by john santu last updated on 14/Apr/20 $$\mathrm{4}{R}+\mathrm{2}{R}\sqrt{\mathrm{2}}\:=\:\mathrm{8}\sqrt{\mathrm{2}} \\ $$$${R}\left(\mathrm{2}+\sqrt{\mathrm{2}}\right)\:=\:\mathrm{4}\sqrt{\mathrm{2}} \\ $$$${R}\:=\:\frac{\mathrm{4}\sqrt{\mathrm{2}}}{\mathrm{2}+\sqrt{\mathrm{2}}}\:×\:\frac{\mathrm{2}−\sqrt{\mathrm{2}}}{\mathrm{2}−\sqrt{\mathrm{2}}}\: \\ $$$${R}=\:\frac{\mathrm{8}\sqrt{\mathrm{2}}−\mathrm{8}}{\mathrm{4}−\mathrm{2}}\:=\:\mathrm{4}\sqrt{\mathrm{2}}\:−\mathrm{4}\:{dm} \\…
Question Number 23290 by math solver last updated on 28/Oct/17 Commented by math solver last updated on 01/Nov/17 $$\mathrm{q}.\mathrm{3}\:\:? \\ $$ Terms of Service Privacy…
Question Number 154353 by liberty last updated on 17/Sep/21 Commented by mr W last updated on 17/Sep/21 $${r}=\mathrm{2}\sqrt{\mathrm{3}}\:\mathrm{sin}\:\theta \\ $$$$\mathrm{2}{r}\:\mathrm{cos}\:\theta=\mathrm{3} \\ $$$$\mathrm{4}\sqrt{\mathrm{3}}\:\mathrm{sin}\:\theta\:\mathrm{cos}\:\theta=\mathrm{3} \\ $$$$\mathrm{sin}\:\mathrm{2}\theta=\frac{\sqrt{\mathrm{3}}}{\mathrm{2}} \\…
Question Number 154330 by DELETED last updated on 17/Sep/21 Answered by DELETED last updated on 17/Sep/21 $$\mathrm{Jawab}: \\ $$$$\mathrm{Dik}=\mathrm{K}_{\mathrm{1}} =\mathrm{8},\mathrm{318}×\mathrm{10}^{−\mathrm{7}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{K}_{\mathrm{2}} =\mathrm{5},\mathrm{248}×\mathrm{10}^{−\mathrm{10}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\left[\mathrm{H}^{+}…
Question Number 154321 by DELETED last updated on 17/Sep/21 Answered by DELETED last updated on 17/Sep/21 $$\bullet\mathrm{pK}_{\mathrm{1}} =\mathrm{6},\mathrm{08}\:\rightarrow−\mathrm{log}\:\mathrm{K}_{\mathrm{1}} =−\mathrm{log}\:\mathrm{10}^{−\mathrm{6},\mathrm{08}} \\ $$$$\rightarrow\mathrm{K}_{\mathrm{1}} =\mathrm{10}^{−\mathrm{6},\mathrm{08}} \\ $$$$\bullet\mathrm{pK}_{\mathrm{2}} =\mathrm{9},\mathrm{28}\:\rightarrow−\mathrm{log}\:\mathrm{K}_{\mathrm{2}}…
Question Number 23131 by ajfour last updated on 26/Oct/17 Commented by ajfour last updated on 26/Oct/17 $${Q}.\mathrm{23122}\:\:\:\:\left({B}\right)\:{pentagonal} \\ $$ Commented by math solver last updated…