Determine the magnitude of the angle [[$ \alpha $]] to the nearest degree when

a) [[$ \sin \alpha = 0.755 $]].

[[$ \alpha = $]] °

b) [[$ \cos \alpha = 0.105 $]].

[[$ \alpha = $]] °

c) [[$ \tan \alpha = 0.424 $]].

[[$ \alpha = $]] °