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NDA · Maths · Binomial Theorem
NDA Binomial Theorem — Formulas 1
Question
1
of 18
1.
What is the general term
T
r
+
1
T_{r+1}
T
r
+
1
in the expansion of
(
a
+
b
)
n
(a+b)^n
(
a
+
b
)
n
?
A
T
r
+
1
=
(
n
r
)
a
n
−
r
b
r
T_{r+1} = \binom{n}{r}\, a^{\,n-r} b^{\,r}
T
r
+
1
=
(
r
n
)
a
n
−
r
b
r
B
T
r
+
1
=
(
n
r
)
a
r
b
n
−
r
T_{r+1} = \binom{n}{r}\, a^{\,r} b^{\,n-r}
T
r
+
1
=
(
r
n
)
a
r
b
n
−
r
C
T
r
+
1
=
(
n
r
−
1
)
a
n
−
r
b
r
T_{r+1} = \binom{n}{r-1}\, a^{\,n-r} b^{\,r}
T
r
+
1
=
(
r
−
1
n
)
a
n
−
r
b
r
D
T
r
=
(
n
r
)
a
n
−
r
b
r
T_{r} = \binom{n}{r}\, a^{\,n-r} b^{\,r}
T
r
=
(
r
n
)
a
n
−
r
b
r
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