Category: Vector

Question Number 77676 by mathocean1 last updated on 08/Jan/20 $$\mathrm{Please}\mathrm{how}\mathrm{can}\mathrm{we}\mathrm{demonstrate}$$$$\mathrm{that}\mathrm{a}\mathrm{vector}\mathrm{is}\mathrm{null}\dots$$$$\mathrm{hello}$$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 142970 by mnjuly1970 last updated on 08/Jun/21 $$\dots \dots \dots .CALCULUS\dots \dots \dots ..$$$$provethat::$$$$\mathit{\varphi }:=\underset{n=1}{\sum ^{\mathrm{\infty }}}\frac{{(-1)}^{n-1}{((n-1)!)}^2}{\left(2n\right)!}=2{log}^2\left(\phi \right)$$$$\phi =goldenratio\dots .$$$$\dots \dots \dots \dots .$$…

Question Number 77356 by mathocean1 last updated on 05/Jan/20 $$\mathrm{The}\mathrm{plan}\mathrm{is}\mathrm{provided}\mathrm{with}\mathrm{an}$$$$\mathrm{orthonormal}\mathrm{reference}(\mathrm{O}.\mathrm{I}.\mathrm{J}).$$$$\mathrm{the}\mathrm{following}\mathrm{points}\mathrm{are}\mathrm{given}$$$$\mathrm{A}(1,2)\mathrm{B}(-2,3)\mathrm{C}(1,9).$$$$\mathrm{We}\mathrm{assume}\mathrm{that}\mathrm{the}\mathrm{point}\mathrm{O}\mathrm{is}\mathrm{the}$$$$\mathrm{barycenter}\mathrm{of}\mathrm{the}\mathrm{point}\mathrm{A},\mathrm{B},\mathrm{C}.$$$$\to \mathrm{O}=\mathrm{bar}\{(\mathrm{A};3),(\mathrm{B};1),(\mathrm{C};-1)\}$$$$ \…

Question Number 11405 by tawa last updated on 24/Mar/17 $$\mathrm{Find}\mathrm{the}\mathrm{magnitude}\mathrm{of}\mathrm{two}\mathrm{forces}\mathrm{such}\mathrm{that}\mathrm{if}\mathrm{they}\mathrm{act}\mathrm{at}\mathrm{right}\mathrm{angle}\mathrm{their}$$$$\mathrm{resultant}\mathrm{is}\sqrt{10},\mathrm{and}\sqrt{13}\mathrm{if}\mathrm{they}\mathrm{act}\mathrm{at}\mathrm{an}\mathrm{angle}\mathrm{of}60°.$$ Answered by mrW1 last updated on 24/Mar/17 $${x}^{\mathrm{2}} +{y}^{\mathrm{2}} =\mathrm{10} \…

Question Number 11351 by tawa last updated on 21/Mar/17 $$\mathrm{Find}\mathrm{the}\mathrm{workdone}\mathrm{in}\mathrm{moving}\mathrm{a}\mathrm{paticle}\mathrm{once}\mathrm{around}\mathrm{an}\mathrm{ellipse}\mathrm{C}\mathrm{in}\mathrm{the}$$$$\mathrm{xy}\mathrm{plane}.\mathrm{if}\mathrm{the}\mathrm{ellipse}\mathrm{has}\mathrm{centre}\mathrm{at}\mathrm{the}\mathrm{origin}\mathrm{with}\mathrm{semi}\mathrm{major}\mathrm{and}\mathrm{semi}\mathrm{minor}\mathrm{axes}$$$$4\mathrm{and}3\mathrm{respectively}.$$ Terms of Service Privacy Policy Contact: info@tinkutara.com