Category: Algebra

Question Number 192924 by a.lgnaoui last updated on 31/May/23 $$1\bullet \mathrm{determiner}:\tan \frac{\mathbf{x}}{2}\mathrm{en}\mathrm{fonction}\mathrm{de}\tan \mathbf{x}$$$$2\bullet \mathrm{on}\mathrm{donne}\tan \mathbf{x}=\frac{1}{8}\tan \frac{\mathbf{x}}{2}=?$$$$3\bullet \mathrm{la}\mathrm{valeur}\mathrm{proche}\mathrm{de}\mathbf{x}?$$ Answered by a.lgnaoui last updated on 31/May/23 $$\mathrm{1}\bullet\mathrm{tan}\:\mathrm{x}=\frac{\mathrm{2t}}{\mathrm{1}−\mathrm{t}^{\mathrm{2}} }\:\:\:\:\mathrm{t}=\mathrm{tan}\left(\:\frac{\mathrm{x}}{\mathrm{2}}\right)…

Question Number 61850 by mr W last updated on 10/Jun/19 $$Findallintegersolution\left(s\right):$$$$615+{\mathit{x}}^2=2^{\mathit{y}}$$ Commented by Rasheed.Sindhi last updated on 10/Jun/19 $${One}\:{solution}:\:\:{x}=\mathrm{59}\:,\:{y}=\mathrm{12} \…

Question Number 192914 by ajfour last updated on 30/May/23 $$x^2(x^2-1)={(1-\frac{c}{x})}^3+{\left(\frac{c}{x}\right)}^3$$ Answered by a.lgnaoui last updated on 31/May/23 $$\mathrm{x}^{\mathrm{2}} \left(\mathrm{x}^{\mathrm{2}} −\mathrm{1}\right)=\frac{\left(\mathrm{x}−\mathrm{c}\right)^{\mathrm{3}}…

Question Number 61811 by rajesh4661kumar@gamil.com last updated on 09/Jun/19 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 127344 by bobhans last updated on 29/Dec/20 $$S=\underset{n=4}{\sum ^{\mathrm{\infty }}}\ell n(1-\frac{1}{n^2})=?$$ Answered by liberty last updated on 29/Dec/20 $$\:{S}\:=\:\underset{{n}=\mathrm{4}} {\overset{\infty} {\sum}}\mathrm{ln}\:\left(\mathrm{1}−\frac{\mathrm{1}}{{n}^{\mathrm{2}}…