Solution to this equation-------find x 1/(2 sinx + 1) = 0.5 answer is 139° ........but i don't know how u get it...plZZZ help
Follow Math Help Forum on Facebook and Google+
Originally Posted by hi00000 Solution to this equation-------find x 1 (2 sinx + 1) = 0.5 answer is 139° ........but i don't know how u get it...plZZZ help Is this $\displaystyle \frac{1}{2\sin{x} + 1} = \frac{1}{2}$? If so... $\displaystyle 2\sin{x} + 1 = 2$ $\displaystyle 2\sin{x} = 1$ $\displaystyle \sin{x} = \frac{1}{2}$. $\displaystyle x = \left\{\frac{\pi}{6}, \frac{5\pi}{6}\right\} + 2\pi n, n\in \mathbf{Z}$.
View Tag Cloud