Vastaus:
# "Objektin nopeus t = 7 on v (7) = 3,78" #
Selitys:
# (d p (t)) / (d t) = v (t) #
# (dp (t)) / (dt) = 3 + pi / 8 * sin (pi / 8 t) + 0 #
#v (t) = 3 + pi / 8 * sin (pi / 8 t) #
#v (7) = 3 + pi / 8 + sin (pi / 8 * 7) #
#sin ((7pi) / 8) = 0,38268343 #
#v (7) = 3 + pi / 8 + 0,38268343 #
#v (7) = pi / 8 + 3,38268343 #
# Pi / 8 = 0,39269908 #
#v (7) = 0,39269908 + 3,38268343 = 3,7753825 #
#v (7) = 3,78 #