5cos(x)=5-5cos(x)

常见问题解答

• $\text{求解 }x$ $5\cos (x)=5-5\cos (x)$

  

  $$x=\{\begin{array}{l}\frac{\pi }{3}+2k\pi \\ \frac{5\pi }{3}+2k\pi \end{array},k\in \mathbb{Z}$$