Trigonometría Ejemplos

$\cos (\frac{7 π}{12}) \cos (\frac{5 π}{12}) + \sin (\frac{7 π}{12}) \sin (\frac{5 π}{12})$

Step 1

$\cos (\frac{7 π}{12}) \cos (\frac{5 π}{12}) + \sin (\frac{7 π}{12}) \sin (\frac{5 π}{12})$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$