Sequences and Strings. Let
t
be the sequence defined by
t_(n)=2n-1,n>=1
(a) Find
\sum_(i=1)^3 t_(i)
. (b) Find
\sum_(i=3)^7 t_(i)
. (c) Find
prod_(i)=1^(3)t_(i)
. (d) Find
prod_(i)=3^(6)t_(i)
. (e) Find a formula that represents this sequence as a sequence whose lower index is 0 . (f) Is
t
decreasing? (g) Is
t
increasing? (h) Is
t
nondecreasing? (i) Is
t
nonincreasing?