Question Number 124321 by sogol last updated on 02/Dec/20 $${f}\left({x},{y},{z}\right)={z}^{\mathrm{2}} {yz}^{\mathrm{3}} \\ $$$${A}={xzi}−{y}^{\mathrm{2}} {j}+\mathrm{2}{x}^{\mathrm{2}} {yk} \\ $$$${div}\left({fA}\right)=? \\ $$$${curl}\left({fA}\right)=? \\ $$ Answered by Ar Brandon…
Question Number 189844 by Mastermind last updated on 22/Mar/23 $$\mathrm{li}\underset{\mathrm{x}\rightarrow\infty} {\mathrm{m}}\left[\mathrm{xsin}\left(\frac{\pi}{\mathrm{x}}\right)\right] \\ $$$$ \\ $$$$\mathrm{Hi} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
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Question Number 124302 by Dwaipayan Shikari last updated on 02/Dec/20 $${n}=\mathrm{2}^{{n}−\mathrm{1}} {sin}\left(\frac{\pi}{{n}}\right){sin}\left(\frac{\mathrm{2}\pi}{{n}}\right)….{sin}\left(\frac{{n}−\mathrm{1}}{{n}}\pi\right)\:\:{prove}\: \\ $$$$ \\ $$ Answered by mnjuly1970 last updated on 02/Dec/20 $${solution} \\…
Question Number 58750 by tanmay last updated on 29/Apr/19 Commented by tanmay last updated on 29/Apr/19 Commented by tanmay last updated on 29/Apr/19 $${it}\:{is}\:{the}\:{source}… \\…
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Question Number 58675 by ajfour last updated on 27/Apr/19 Commented by ajfour last updated on 27/Apr/19 $$\mathrm{ABCD}\:\mathrm{is}\:\mathrm{a}\:\mathrm{square};\:\mathrm{while},\:\mathrm{PQM}\:\mathrm{is} \\ $$$$\mathrm{a}\:\mathrm{sector}.\:\mathrm{Find}\:\mathrm{in}\:\mathrm{what}\:\mathrm{proportion} \\ $$$$\mathrm{are}\:\mathrm{radii}\:\mathrm{b},\:\mathrm{r},\:\mathrm{g}\:\left(\mathrm{blue},\:\mathrm{red},\:\mathrm{green}\right. \\ $$$$\left.\mathrm{respectively}\right). \\ $$…