Category: Trigonometry

Question Number 216033 by efronzo1 last updated on 26/Jan/25 Answered by mr W last updated on 26/Jan/25 Commented by mr W last updated on 26/Jan/25…

Question Number 215696 by BaliramKumar last updated on 15/Jan/25 Answered by MATHEMATICSAM last updated on 15/Jan/25 $${\sec }^4\mathrm{x}-{\mathrm{cosec}}^4\mathrm{x}-{2\sec }^2\mathrm{x}+{2\mathrm{cosec}}^2\mathrm{x}=\frac{63}{8}$$$$\Rightarrow\:\mathrm{sec}^{\mathrm{2}} {x}\left(\mathrm{sec}^{\mathrm{2}} {x}\:−\:\mathrm{2}\right)\:+\:\mathrm{cosec}^{\mathrm{2}}…

Question Number 215640 by BaliramKumar last updated on 12/Jan/25 $$If{2025}^{{sin}^{2}x}-{2025}^{{cos}^{2}x}=\sqrt{2025}$$$$then{2025}^{cos2x}+\frac{1}{{2025}^{cos2x}}=?$$ Answered by Frix last updated…

Question Number 215349 by mnjuly1970 last updated on 03/Jan/25 $$$$$$Findthetypeoftriangle$$$$suchthatthefollowing$$$$relationshipholdsbetween$$$$itsangles.$$$$$$$$tan\left(B\right)tan\left(C\right)={tan}^2\left(\frac{B+C}{2}\right)◼$$$$…

Question Number 215017 by Hery03 last updated on 25/Dec/24 $$R\acute{esoudre}dans\mathbb{C}{l}^{\prime }\acute{equation}:$$$$sin\left(z\right)=2.$$ Answered by MrGaster last updated on 25/Dec/24 $${z}=−{i}\:\mathrm{ln}\left(\underset{\mathrm{simplify}} {\underbrace{\sqrt{\mathrm{1}−\mathrm{2}^{\mathrm{2}}…