Trigonometric Equations
These videos show how to find all solutions of trigonometric equation or find all solutions in a given interval.
Exercises
1.
\(x = \dfrac{\pi}{4}, \dfrac{5\pi}{4}\)
2.
\(x= 0,\ \dfrac{\pi}{6},\ \dfrac{5\pi}{6},\ \pi\)
3.
\(x=\dfrac{3\pi}{2}\)
4.
\(\displaystyle x=\frac{\pi}{16},\ \frac{7\pi}{16},\ \frac{9\pi}{16},\ \frac{15\pi}{16},\ \frac{17\pi}{16},\ \frac{23\pi}{16},\ \frac{25\pi}{16},\ \frac{31\pi}{16}\)
5.
\(x=\dfrac{\pi}{2}+2n\pi,\quad\) for any integer \(n\)