Question

Calculati sinus de
$\frac{1225\pi}{6}$

Answer 1

sin(1224pi/6+pi/6)=sin(204pi+pi/6)=sin(2*(102)pi+pi/6)=sin(pi/6)=1/2

Am folosit periodicitatea sin(2kpi+a)=sin(a) , k={1,2,3...}