cos(3x+pi)=0.5-এর সমাধান করুন

$$\cos ( 3x + \pi ) = 0.5$$

Solve for x

$$x=\frac{2\pi n_{1}}{3}+\frac{2\pi }{9}\text{, }n_{1}\in \mathrm{Z}$$

$$x=\frac{2\pi n_{1}}{3}+\frac{4\pi }{9}\text{, }n_{1}\in \mathrm{Z}$$