Category: Others

Question Number 216887 by zetamaths last updated on 23/Feb/25 $$\underset{{k}=\mathrm{1}} {\overset{{n}} {\prod}}{cos}\left(\frac{{x}}{\mathrm{2}^{{k}} }\right)={Pn}\left({x}\right) \\ $$$${evaluate}\:{Pn}\left({x}\right)\:\:{and}\:\:{P}_{{n}} \left({x}^{\mathrm{2}} +\mathrm{1}\right) \\ $$$$ \\ $$$$ \\ $$ Terms of…

Question Number 216788 by Tawa11 last updated on 20/Feb/25 Commented by Tawa11 last updated on 20/Feb/25 In Figure DIN11, the mass "m" is located on…

Question Number 216651 by atmstsr_98 last updated on 14/Feb/25 $$ \\ $$$$ \\ $$$$ \\ $$$$ \\ $$ Commented by ArshadS last updated on 14/Feb/25…

Question Number 216621 by Tawa11 last updated on 12/Feb/25 Answered by A5T last updated on 12/Feb/25 Commented by A5T last updated on 12/Feb/25 $$\left[\mathrm{OA}_{\mathrm{1}} \mathrm{DT}\right]=\left[\mathrm{ABCT}\right]\:\mathrm{when}\:\mathrm{both}\:\mathrm{cars}\:\mathrm{meet}\:\mathrm{at}\:\mathrm{time}\:\mathrm{t}…

Question Number 216593 by Tawa11 last updated on 11/Feb/25 Answered by A5T last updated on 11/Feb/25 $$\mathrm{At}\:\mathrm{vertex},\:\:\frac{\mathrm{dy}}{\mathrm{dx}}=\mathrm{2ax}+\mathrm{b}=\mathrm{0}\Rightarrow\mathrm{18a}+\mathrm{b}=\mathrm{0}\Rightarrow\mathrm{b}=−\mathrm{18a} \\ $$$$−\mathrm{14}=\mathrm{81a}+\mathrm{9b}+\mathrm{c} \\ $$$$\Rightarrow\mathrm{c}=−\mathrm{14}+\mathrm{81a} \\ $$$$\Rightarrow\mathrm{a}+\mathrm{b}+\mathrm{c}=\mathrm{a}−\mathrm{18a}−\mathrm{14}+\mathrm{81a}=\mathrm{64a}−\mathrm{14} \\ $$$$\frac{\mathrm{d}^{\mathrm{2}}…