გადაწყვიტეთ {l}{cos(A)=0.5}{a={(sqrt{2})}}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { \cos(A) = 0.5 }\\ { a = {(\sqrt{2})} }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

ამოხსნა A, a, b-ისთვის

$$A=2\pi n_{1}+\frac{\pi }{3}\text{, }n_{1}\in \mathrm{Z}\text{, }a=\sqrt{2}\approx 1.414213562\text{, }b=\sqrt{2}\approx 1.414213562$$

$$A=2\pi n_{2}+\frac{5\pi }{3}\text{, }n_{2}\in \mathrm{Z}\text{, }a=\sqrt{2}\approx 1.414213562\text{, }b=\sqrt{2}\approx 1.414213562$$