Category: Trigonometry

Question Number 196625 by sniper237 last updated on 28/Aug/23 $$Leta=BCb=CAc=AB$$$$ABCisrectangleifftan\left(\frac{\hat{A}}{2}\right)=\frac{a}{b+c}$$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 196523 by ERLY last updated on 27/Aug/23 $$resoudredansclequationsinx=2★erlyrolvinst★<erlyrolvinst>$$ Answered by Frix last updated on 26/Aug/23 $$\sin x=\frac{{\mathrm{e}}^{\mathrm{i}x}-{\mathrm{e}}^{-\mathrm{i}x}}{2\mathrm{i}}=2$$$$\mathrm{e}^{\mathrm{i}{x}} −\frac{\mathrm{1}}{\mathrm{e}^{\mathrm{i}{x}}…

Question Number 196518 by ERLY last updated on 26/Aug/23 $$resouxrecosx=2$$ Answered by Frix last updated on 26/Aug/23 $$\mathrm{Similar}\mathrm{to}\mathrm{the}\mathrm{other}\mathrm{question}$$$$x=2n\pi \pm \mathrm{i}\ln (2+\sqrt{3})$$ Terms…

Question Number 196394 by Erico last updated on 24/Aug/23 $$\mathrm{If}f\left(x\right)={\underset{0}{\int }}^x{e}^{-f\left(t\right)}dt$$$$\mathrm{Determine}f\left(x\right)$$ Answered by mr W last updated on 24/Aug/23…

Question Number 196265 by KRIMO last updated on 21/Aug/23 Answered by a.lgnaoui last updated on 21/Aug/23 $$\mathrm{posons}\mathrm{z}=\mathrm{a}+\mathrm{ib}\iff \mathrm{z}=\sqrt{{\mathrm{a}}^2+{\mathrm{b}}^2}(\frac{\mathrm{a}}{\sqrt{{\mathrm{a}}^2+{\mathrm{b}}^2}}+\mathrm{i}\frac{\mathrm{b}}{\sqrt{{\mathrm{a}}^2+{\mathrm{b}}^2}})$$$$\mathrm{avec}\:\:\frac{\mathrm{a}}{\:\sqrt{\mathrm{a}^{\mathrm{2}}…