Question Number 62609 by hovea cw last updated on 23/Jun/19 $$\mathrm{If}\:\:\mathrm{5}\mid{x}\mid\:+\:\mathrm{4}\mid{y}\mid\:=\:\mathrm{4}\:\mathrm{and}\:\mathrm{2}\mid{x}\mid\:−\:\mathrm{4}\mid{y}\mid\:=\:\mathrm{10}, \\ $$$$\mathrm{then}\:\mathrm{find}\:{x}\:\mathrm{and}\:{y}. \\ $$ Answered by $@ty@m last updated on 23/Jun/19 $${Let}\:\mid{x}\mid={a}\:\&\mid{y}\mid={b} \\ $$$$\mathrm{5}{a}+\mathrm{4}{b}=\mathrm{4}\:\:…
Question Number 62591 by hovea cw last updated on 23/Jun/19 $$\mathrm{If}\:\:\mathrm{2}^{{x}} =\:\mathrm{3}^{{y}} =\:\mathrm{6}^{{z}} ,\:\mathrm{then}\:\frac{\mathrm{1}}{{x}}\:+\:\frac{\mathrm{1}}{{y}}\:+\:\frac{\mathrm{1}}{{z}}\:=\:\_\_\_\_. \\ $$ Commented by mr W last updated on 23/Jun/19 $${could}\:{be}\:{any}\:{value}\:{in}\:\left(−\infty,\infty\right)\:{except}\:{zero}.…
Question Number 62388 by hovea cw last updated on 20/Jun/19 $$\mathrm{If}\:\mathrm{tan}\:\theta=\frac{\mathrm{1}}{\mathrm{2}}\:\mathrm{and}\:\mathrm{tan}\:\phi=\frac{\mathrm{1}}{\mathrm{3}},\:\mathrm{then}\:\mathrm{the} \\ $$$$\mathrm{value}\:\mathrm{of}\:\:\theta\:+\:\phi\:\:\:\mathrm{is} \\ $$ Commented by Tony Lin last updated on 20/Jun/19 $${tan}\left(\theta+\emptyset\right)=\frac{{tan}\theta+{tan}\emptyset}{\mathrm{1}−{tan}\theta{tan}\phi}=\mathrm{1} \\…
Question Number 193437 by mustafazaheen last updated on 14/Jun/23 $$\mathrm{in}\:\mathrm{the}\:\mathrm{malicol}\:\mathrm{of}\:\mathrm{CaCO}_{\mathrm{3}} \:\mathrm{how}\:\mathrm{many} \\ $$$$\sigma\:\mathrm{and}\:\pi\:\mathrm{bond}\:\mathrm{has}? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 193436 by beto last updated on 14/Jun/23 $$ \\ $$$$\frac{{sin}\left({x}+\mathrm{18}^{{o}} \right)}{{sin}\left(\mathrm{48}^{{o}} \right)}=\frac{{sin}\left({x}\right)}{{sin}\left(\mathrm{18}^{{o}} \right)} \\ $$$$ \\ $$ Answered by a.lgnaoui last updated on…
Question Number 193439 by Nimnim111118 last updated on 14/Jun/23 $$\underset{\:\:\mathrm{0}} {\int}^{\pi/\mathrm{2}} \frac{\sqrt[{\mathrm{3}}]{{tanx}}}{\left({sinx}+{cosx}\right)^{\mathrm{2}} }{dx} \\ $$ Commented by Nimnim111118 last updated on 14/Jun/23 $${help}… \\ $$…
Question Number 193438 by Mingma last updated on 14/Jun/23 Answered by qaz last updated on 14/Jun/23 $${log}_{\mathrm{3}} \left(\mathrm{9}{x}−\mathrm{3}\right)=\mathrm{1}+{log}_{\mathrm{3}} \left(\mathrm{3}{x}−\mathrm{1}\right)\:\:\:\:\:,{log}_{\mathrm{3}} \left({x}−\frac{\mathrm{1}}{\mathrm{3}}\right)={log}_{\mathrm{3}} \left(\mathrm{3}{x}−\mathrm{1}\right)−\mathrm{1} \\ $$$${log}_{\mathrm{3}} \left(\mathrm{3}{x}−\mathrm{1}\right)={y} \\…
Question Number 193435 by Mingma last updated on 14/Jun/23 Commented by maths_plus last updated on 14/Jun/23 $$\mathrm{i}\:\mathrm{want}\:\mathrm{to}\:\mathrm{known}\:… \\ $$ Answered by qaz last updated on…
Question Number 193426 by 073 last updated on 13/Jun/23 $$\int\sqrt[{\mathrm{3}}]{\mathrm{x}^{\mathrm{3}} +\mathrm{1}}\mathrm{dx}=? \\ $$$$\mathrm{solution}? \\ $$ Answered by witcher3 last updated on 15/Jun/23 $$\mathrm{x}^{\mathrm{3}} =\mathrm{t} \\…
Question Number 193423 by mustafazaheen last updated on 13/Jun/23 $$\mathrm{when}\:\:\:\mathrm{tan}\frac{\theta}{\mathrm{2}}=\frac{\mathrm{1}}{\mathrm{a}} \\ $$$$\mathrm{then}\:\mathrm{find}\:\mathrm{cos}\theta=?\:\mathrm{from}\:\mathrm{the}\:\mathrm{a} \\ $$ Answered by AST last updated on 13/Jun/23 $${tan}\left(\frac{\theta}{\mathrm{2}}+\frac{\theta}{\mathrm{2}}\right)=\frac{\mathrm{2}{tan}\left(\frac{\theta}{\mathrm{2}}\right)}{\mathrm{1}−{tan}^{\mathrm{2}} \left(\frac{\theta}{\mathrm{2}}\right)}\Rightarrow{tan}\left(\theta\right)=\frac{\mathrm{2}{a}}{{a}^{\mathrm{2}} −\mathrm{1}} \\…