Pre-Calc grade 12 advanced function Trig

[xlxAmeriexlx]

1. Determine approximate solutions for each
equation in the interval x ∈ [0, 2π], to the
nearest hundredth of a radian.
a) sinx - 1/4 = 0


3. I don't know what to do... I am supposed to asnwer in radian like this --> (π/4 , 4π/6 etc..)

 

[rock.freak667]

sinx=1/4

do you see how to solve it now?