Matematica: Esercizi di Trigonometria

$$cos\left(x-\displaystyle\frac{2}{3}\pi\right) – 3 = 2cos\left(x-\displaystyle\frac{2}{3}\pi\right) – 2$$$$cos\left(x-\displaystyle\frac{2}{3}\pi\right) = -1$$

$$x-\displaystyle\frac{2}{3}\pi = \pi \Rightarrow x=\displaystyle\frac{5}{3}\pi + 2k\pi$$

Visite: 866

Pagine: 1 2 3 4 5 6 7 8 9