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Question-139645

Question Number 139645 by otchereabdullai@gmail.com last updated on 30/Apr/21 Commented by mr W last updated on 30/Apr/21 $${OD}={AO}×\mathrm{sin}\:\angle{OAB}=\mathrm{52}×\frac{\mathrm{5}}{\mathrm{13}}=\mathrm{20} \\ $$$${BD}=\sqrt{\mathrm{25}^{\mathrm{2}} −\mathrm{20}^{\mathrm{2}} }=\mathrm{15} \\ $$$${BC}=\mathrm{2}×{BD}=\mathrm{2}×\mathrm{15}=\mathrm{30} \\…

find-the-first-root-8i-1-2-

Question Number 139608 by mohammad17 last updated on 29/Apr/21 $${find}\:{the}\:{first}\:{root}\:\left(−\mathrm{8}{i}\right)^{\frac{\mathrm{1}}{\mathrm{2}}} \\ $$ Answered by floor(10²Eta[1]) last updated on 29/Apr/21 $$\sqrt{−\mathrm{8i}}=\mathrm{a}+\mathrm{bi} \\ $$$$−\mathrm{8i}=\mathrm{a}^{\mathrm{2}} −\mathrm{b}^{\mathrm{2}} +\mathrm{2abi} \\…

Question-8516

Question Number 8516 by Chantria last updated on 14/Oct/16 Commented by 123456 last updated on 14/Oct/16 $$\:{aa}+{bb}+{cc}={abc} \\ $$$$\mathrm{11}\left({a}+{b}+{c}\right)=\mathrm{100}{a}+\mathrm{10}{b}+{c} \\ $$$$\mathrm{11}{a}+\mathrm{11}{b}+\mathrm{11}{c}=\mathrm{100}{a}+\mathrm{10}{b}+{c} \\ $$$${b}+\mathrm{10}{c}=\mathrm{89}{a} \\ $$…

Bug-in-version-2-265-1-the-cursor-keys-seem-not-to-work-2-when-inserting-new-lines-with-Enter-key-the-cursor-doesn-t-move-

Question Number 139582 by mr W last updated on 29/Apr/21 $${Bug}\:{in}\:{version}\:\mathrm{2}.\mathrm{265} \\ $$$$\mathrm{1}.\:{the}\:{cursor}\:{keys}\:\uparrow\downarrow\:{seem}\:{not}\:{to}\:{work}. \\ $$$$\mathrm{2}.\:{when}\:{inserting}\:{new}\:\:{lines}\:{with} \\ $$$${Enter}\:{key},\:{the}\:{cursor}\:{doesn}'{t}\:{move}. \\ $$ Terms of Service Privacy Policy Contact:…