Let f (x) = sin x and g (x) = ln|x|. If the range of the composition
functions fog and gof are R1 and R2 respectively, then
a) R1 = [ u : −1 ≤ u < 1], R2 = [ v : − < v < 0 ]
b) R1 = [ u : − < u < 0 ], R2 = [ v : −1 ≤ v ≤ 0]
c) R1 = [ u : −1 < u < 1], R2 = [ v : − < v < 0 ]
d) R1 = [ u : −1 ≤ u ≤ 1], R2 = [ v : − < v ≤ 0 ]