1.
a) a1=3,a2=5,a3=7,a4=9
b)a1=-1,a2=1,a3=5,a4=11.
c)a1=,a2=,a3=,a4=,
d)a1=1/3 a2=1/9 a3=1/27 24=1/81
d)a1=-1,a2=1,a3=5,a4=11,
e)a1=0,a2=1/3,a3=2/4,a4=3/5,
f)a1=-1,a2=1,a3=-1,a4=1,
g)a1=-1,a2=1/4,a3=-1/27,a4=1/256,
h)a1=0,a2=2,a3=4,a4=6
3.
a) an=2n-1
b) an=4*(-1)^n
c)an=2^(n-1)
d)an=(n-1)(n+1)
e)an=(-1/3)^(n-1)
