Question

Sa se calculeze
sinus 30 grade-cosinus 45 grade+sinus 60 grade

Answer 1

Răspuns:

$\sin(30) = \frac{1}{2}$

$\cos(45) = \frac{ \sqrt{2} }{2}$

$\sin(60) = \frac{ \sqrt{3} }{2}$

Ecuatia devine:

$\frac{1}{2} - \frac{ \sqrt{2} }{2} + \frac{ \sqrt{3} }{2} = \frac{1 - \sqrt{2} + \sqrt{3} }{2}$