X = cos 0° + 2×sen 30° + cos² 45°?
X = cos 0° + 2×sen 30° + cos² 45°.
10Cami208
X = cos 0° + 2×sen 30° + cos² 45°.
En resumen
Cos 0 = 1 2 sen 30 = 1 cos ^ 45 = 0. 5 entonces : x = 1 + 1 + 0. 5 x = 2, 5 = 5 / 2.
Cos 0 = 1
2 sen 30 = 1
cos ^ 45 = 0.
5
entonces : x = 1 + 1 + 0.
5
x = 2, 5 = 5 / 2.