Question Number 21574 by Tinkutara last updated on 27/Sep/17 $$\mathrm{The}\:\mathrm{cyclic}\:\mathrm{octagon}\:{ABCDEFGH}\:\mathrm{has} \\ $$$$\mathrm{sides}\:{a},\:{a},\:{a},\:{a},\:{b},\:{b},\:{b},\:{b}\:\mathrm{respectively}. \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{radius}\:\mathrm{of}\:\mathrm{the}\:\mathrm{circle}\:\mathrm{that} \\ $$$$\mathrm{circumscribes}\:{ABCDEFGH}\:\mathrm{in}\:\mathrm{terms} \\ $$$$\mathrm{of}\:{a}\:\mathrm{and}\:{b}. \\ $$ Answered by mrW1 last updated…
Question Number 21571 by Tinkutara last updated on 27/Sep/17 $${ABCD}\:\mathrm{is}\:\mathrm{a}\:\mathrm{cyclic}\:\mathrm{quadrilateral};\:{x},\:{y},\:{z} \\ $$$$\mathrm{are}\:\mathrm{the}\:\mathrm{distances}\:\mathrm{of}\:{A}\:\mathrm{from}\:\mathrm{the}\:\mathrm{lines} \\ $$$${BD},\:{BC},\:{CD}\:\mathrm{respectively}.\:\mathrm{Prove}\:\mathrm{that} \\ $$$$\frac{{BD}}{{x}}\:=\:\frac{{BC}}{{y}}\:+\:\frac{{CD}}{{z}}. \\ $$ Answered by revenge last updated on 29/Sep/17…
Question Number 87088 by TawaTawa1 last updated on 02/Apr/20 Answered by mr W last updated on 02/Apr/20 Commented by mr W last updated on 02/Apr/20…
Question Number 87089 by TawaTawa1 last updated on 02/Apr/20 Commented by TawaTawa1 last updated on 02/Apr/20 $$\mathrm{That}\:\mathrm{is}\:\:\mathrm{4}\:\mathrm{in} \\ $$ Commented by MJS last updated on…
Question Number 21490 by NECx last updated on 24/Sep/17 $$\mathrm{The}\:\mathrm{kinetic}\:\mathrm{energy}\:\mathrm{of}\:\mathrm{a}\:\mathrm{body} \\ $$$$\mathrm{increases}\:\mathrm{by}\:\mathrm{100\%}.\mathrm{Find}\:\mathrm{the}\:\% \\ $$$$\mathrm{increase}\:\mathrm{in}\:\mathrm{its}\:\mathrm{momentum}. \\ $$$$ \\ $$$$\mathrm{please}\:\mathrm{solve}\:\mathrm{with}\:\mathrm{explanations} \\ $$$$\mathrm{where}\:\mathrm{necessary}.\:\mathrm{Thanks}. \\ $$ Answered by ajfour…
Question Number 152522 by mr W last updated on 29/Aug/21 Commented by SANOGO last updated on 29/Aug/21 $${thank}\:{you}\:{sir} \\ $$$$ \\ $$$$ \\ $$$$ \\…
Question Number 152486 by Tawa11 last updated on 28/Aug/21 Answered by mr W last updated on 29/Aug/21 Commented by mr W last updated on 29/Aug/21…
Question Number 86937 by TawaTawa1 last updated on 01/Apr/20 Commented by john santu last updated on 01/Apr/20 $$\mathrm{radius}\:\mathrm{smaller}\:\mathrm{circle}\:=\:\frac{\mathrm{8}}{\mathrm{15}} \\ $$$$\mathrm{miss}\:\mathrm{tawa} \\ $$ Commented by john…
Question Number 21401 by math1967 last updated on 23/Sep/17 $$\underset{\mathrm{0}} {\overset{\infty} {\int}}\frac{{xdx}}{{e}^{{x}} +\mathrm{1}}=? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 86907 by TawaTawa1 last updated on 01/Apr/20 Commented by mr W last updated on 01/Apr/20 $${question}\:{is}\:{wrong}\:!? \\ $$$${there}\:{are}\:{infinite}\:{possibilities}\:{for} \\ $$$${PQRS}. \\ $$$$\frac{\left[{PQRS}\right]}{\Delta{ABC}}\neq{constant},\:{but}\:{min}.=\frac{\mathrm{2}}{\mathrm{5}} \\…