Question Number 114379 by A8;15: last updated on 18/Sep/20 Commented by A8;15: last updated on 18/Sep/20 please help Answered by mr W last updated on 19/Sep/20…
Question Number 179869 by cherokeesay last updated on 03/Nov/22 Commented by HeferH last updated on 03/Nov/22 Commented by HeferH last updated on 03/Nov/22 $$\:\frac{{x}}{\mathrm{6}}\:=\:\frac{\mathrm{6}}{\mathrm{12}} \\…
Question Number 48763 by mr W last updated on 28/Nov/18 Commented by mr W last updated on 28/Nov/18 $${Find}\:{R}\:{in}\:{terms}\:{of}\:{a},\:{b},\:{c}. \\ $$ Answered by ajfour last…
Question Number 179811 by Acem last updated on 02/Nov/22 Commented by Acem last updated on 02/Nov/22 $$\:\ast\:\ell\:{is}\:{an}\:{arc} \\ $$$$\:\ast\:{we}\:{can}\:{get}\:\mathrm{2}\:{equilateral}\:{triangles}\:{formed}\:{by} \\ $$$$\:\:\:\:\:{it}\:{vertices} \\ $$$$ \\ $$…
Question Number 48739 by mr W last updated on 28/Nov/18 $${Find}\:{the}\:{maximum}\:{of} \\ $$$${f}\left({x}\right)=\mathrm{cos}\:{x}\:+\:\frac{\lambda\:\mathrm{tan}\:{x}−\mathrm{1}}{\mathrm{tan}\:{x}−\lambda}\:\mathrm{sin}\:{x} \\ $$$${in}\:{terms}\:{of}\:\lambda \\ $$$${with}\:\lambda>\mathrm{1}\:{and}\:\mathrm{0}<{x}<\mathrm{tan}^{−\mathrm{1}} \lambda \\ $$ Answered by MJS last updated…
Question Number 179752 by Acem last updated on 01/Nov/22 Commented by Acem last updated on 01/Nov/22 $${P}.{s}.\:{It}'{s}\:{not}\:{right}\:{triangle} \\ $$ Commented by CElcedricjunior last updated on…
Question Number 48677 by Tawa1 last updated on 27/Nov/18 Answered by mr W last updated on 27/Nov/18 Commented by Tawa1 last updated on 27/Nov/18 $$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir}…
Question Number 48676 by Tawa1 last updated on 27/Nov/18 Answered by tanmay.chaudhury50@gmail.com last updated on 27/Nov/18 $${sum}\:{of}\:{internal}\:{angles}\:{of}\:{n}\:{sided}\:{polygon}\:{is} \\ $$$$\left({n}−\mathrm{2}\right)×\mathrm{180}^{{o}} \\ $$$${so}\: \\ $$$$\mathrm{120}+\mathrm{110}+\mathrm{2}{x}+\mathrm{30}=\left(\mathrm{5}−\mathrm{2}\right)×\mathrm{180} \\ $$$$\mathrm{2}{x}=\mathrm{540}−\mathrm{260}…
Question Number 48653 by ajfour last updated on 26/Nov/18 Commented by ajfour last updated on 26/Nov/18 $${Find}\:\:\frac{{r}}{{R}}.\:{Smaller}\:{sphere} \\ $$$$\:{inscribed}\:{inside}\:{tetrahedron} \\ $$$${and}\:{larger}\:{one}\:{circumscribing}\:{the} \\ $$$${tetrahedron}\:\left({regular}\right). \\ $$…
Question Number 48638 by mr W last updated on 26/Nov/18 Commented by mr W last updated on 26/Nov/18 $${Find}\:{the}\:{locus}\:{of}\:{P}\:{such}\:{that}\:{PO} \\ $$$${is}\:{the}\:{bisector}\:{of}\:\angle{APB}. \\ $$ Commented by…