Category: Trigonometry

Question Number 22649 by ajfour last updated on 21/Oct/17 Commented by ajfour last updated on 21/Oct/17 $$solutiontoQ.22599$$ Answered by ajfour last updated on…

Question Number 22576 by ajfour last updated on 20/Oct/17 Commented by ajfour last updated on 20/Oct/17 $$Q.22536\left(Alternatesolution\right)$$ Answered by ajfour last updated on…

Question Number 153568 by liberty last updated on 08/Sep/21 $$solveinx\in \mathbb{C}$$$$\sin x=\frac{3}{2}$$$$$$ Answered by Ar Brandon last updated on 08/Sep/21 $$\mathrm{sin}{x}=\frac{\mathrm{3}}{\mathrm{2}}\:\Rightarrow{e}^{{ix}}…

Question Number 153483 by cherokeesay last updated on 07/Sep/21 Commented by mr W last updated on 07/Sep/21 $$thereisnouniqueanswer!$$$$examples:$$$$\sin x=\frac{3}{5},\cos y=\frac{4}{5}$$$$\Rightarrow\frac{\mathrm{1}}{\mathrm{sin}\:{x}}+\frac{\mathrm{1}}{\mathrm{cos}\:{y}}=\frac{\mathrm{5}}{\mathrm{3}}+\frac{\mathrm{5}}{\mathrm{4}}=\frac{\mathrm{35}}{\mathrm{12}} \…

Question Number 22348 by Tinkutara last updated on 16/Oct/17 $$\mathrm{The}\mathrm{sum}\mathrm{of}\mathrm{all}\mathrm{the}\mathrm{solutions}\mathrm{of}\mathrm{the}$$$$\mathrm{equation}1+2\mathrm{cosec}x=-\frac{{\sec }^2\frac{x}{2}}{2}\mathrm{in}$$$$\mathrm{the}\mathrm{interval}[0,4\pi ]\mathrm{is}n\pi ,\mathrm{where}n\mathrm{is}$$$$\mathrm{equal}\mathrm{to}$$ Answered by ajfour last updated on…