Question

Найдите значение выражения
sin(arcsin1/2)
cos(arccos1/2)
tg(arctg1)

Answer 1

$\sin{(arcsin\frac{1}{2})}=\frac{1}{2} \ \ (\sin{\frac{\pi}{6}}); \\ \\ \cos{(arccos\frac{1}{2})}=\frac{1}{2} \ \ (\cos{\frac{\pi}{3}}); \\ \\ tg(arctg1)=1 \ \ (tg \frac{\pi}{4})$

Answer 2

$sin(arcsin \frac{1}{2} )= \frac{1}{2} \\ cos(arccos \frac{1}{2} )= \frac{1}{2} \\ tg(arctg1)=1$