BINOYIAL THEOREM,
SEQ
UENCES
AP:
* a,
atd,
a+
2d...
*
tn
at
(n-i)ol
*
If
a,b,
c are
in
AP
2b-
atc
*
a,
ar,
ar2
+ f
a,
b,
e are
in
GP
SERIES
arithmetic
Acometris
Sn
2at
(n-Da
=
2[a]
a(r")
r-l
-
all-r)
(-r
if
rl
if
r<I
an
if
r=|
¢SERIES
SPECIAL SERIES
1+2+3
+.
...
n =
n(n+1)
)+2+
3+...
n*_
nln+2n
+)
GENERAL
TERM
OF
(a+ay
T+n,
at
NOTE:
*nlo
2
n
MIDE
TERM
OF
(aty)
T+iE
n
even
GREATEST
OEFFICIENTS
n
n’even
nlnl
xnCn
nodd
