Math Help - trig eqn

1. trig eqn

how would i write in radians, all solutions to these?

a)tan theta= sqrt 3

b)sin x = ((sqrt 3)/2)

i have no idea. thanks.

2. use the equilateral triangle, cut it into 2 equal sides, the triangle now is a 30 - 60 degrees triangle. The sides are hypotenuse = 2, opposite = 1 and the adjacent side = sqrt 3. Then convert it to radians