Find the phasors of the following time functions

Find the phasors of the following time functions:
(a)v (t) – 3 cos (wt – π/3) (V),
(b)v (t) – 12 sin (wt + π/4) (V),
(c)i (x. t)2e–3x sin (wt + π/6) (A),
(d)i(t) – 2 cos (wt + 3π/4) (A),
(e)i(t) – 4 sin (wt + π/3) + 3 cos (wt – π/6) (A).