How do you evaluate #arcsin(1/2)#?
1 Answer
Jun 9, 2015
Find arcsin (1/2)
Explanation:
sin x = 1/2 -> find x?
Trig table gives ->
Trig unit circle gives another arc x that has the same sin value (1/2):
x = (180 - 30) = 150 deg
Answer within interval (0, 360): 30 deg and 150 deg
