Question

I need some help, am totally lost...
Use the given information to evaluate each expression.
sin α =√(3 /2) with 90° < α < 180°
(a) sin(α/2)
(b) cos(α/2)
(c) tan(α/2)

Answer 1

you know \(\alpha =120\) since \(\sin(120)=\frac{\sqrt{3}}{2}\)

Answer 2

your job is to know find \(\sin(60),\cos(60),\tan(60)\)

Answer 3

*now is what i meant, although it would also be good to "know" those values

Answer 4

Thank You so much, it geared me in the right direction! :)

Answer 5

yw