Question

Stiind ca tg(a/2)=1/sqrt3, sa se calculeze sin(a).

$tg\frac{a}{2}=\frac{1}{\sqrt{3}}$

Answer 1

Explicație pas cu pas:

$tg\frac{a}{2}=\frac{1}{\sqrt{3}} = \frac{ \sqrt{3} }{3} \\ = > \frac{a}{2} = 30 = > a = 60$

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

Answer 2

tg(a/2) = rad3/3 => a/2 = 30* => a = 60*
sin(a) = rad3/2