Category: Algebra

Question Number 192330 by Shrinava last updated on 14/May/23 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 126723 by ajfour last updated on 23/Dec/20 Commented by prakash jain last updated on 23/Dec/20 $$\mathrm{Two}\mathrm{assumptions}$$$$p^2+2pq=1$$$$q=2c$$$$\mathrm{You}\:\mathrm{are}\:\mathrm{substituting}\:\mathrm{a}\:\mathrm{given}\:\mathrm{value}…

Question Number 126700 by Eric002 last updated on 23/Dec/20 $$\theta ={sin}^{-1}\left(\frac{2}{5}\right)findcos\left(\theta \right)andtan\left(\theta \right)$$$$$$ Answered by akornes last updated on 23/Dec/20 $$cos\theta =\pm \frac{\sqrt{21}}{5}andtan\theta =\pm \frac{2\sqrt{21}}{21}$$…

Question Number 61162 by Tawa1 last updated on 29/May/19 $$\mathrm{if}\sin \left(\mathrm{x}\right)=\frac{\mathrm{x}-20}{20},\mathrm{find}\mathrm{x}$$ Commented by kaivan.ahmadi last updated on 29/May/19 $$wecanfindnumberofsolutionbyplote$$$$y=sinxandy=\frac{x-20}{20}$$$${this}\:{equation}\:{has}\:\mathrm{13}\:{answer} \…

Question Number 61137 by Tawa1 last updated on 29/May/19 $$\mathrm{What}\mathrm{is}\mathrm{the}\mathrm{sum}\mathrm{of}\mathrm{first}3\mathrm{n}\mathrm{term}\mathrm{of}\mathrm{an}\mathrm{AP},\mathrm{if}\mathrm{the}\mathrm{sunm}\mathrm{of}\mathrm{first}\mathrm{n}\mathrm{term}\mathrm{is}$$$$2\mathrm{n}\mathrm{and}\mathrm{sum}\mathrm{of}\mathrm{first}2\mathrm{n}\mathrm{term}\mathrm{is}5\mathrm{n}$$ Answered by Kunal12588 last updated on 29/May/19 $$S_n=2n$$$$\Rightarrow\frac{{n}}{\mathrm{2}}\left(\mathrm{2}{a}+\left({n}−\mathrm{1}\right){d}\right)=\mathrm{2}{n}…