obtain the expansion of following binomial expansion (1+x)7
Answers
Answered by
0
Answer:
(x+y)
n
⇒r=0∑n
r
n
Cx
n−r
y
r
for the given expression
=
0
7
C(−xy)
0
+
1
7
C(−xy)
1
+
2
7
C(−xy)
2
+
3
7
C(−xy)
3
+
4
7
C(−xy)
4
+
5
7
(−xy)
5
+
6
7
(−xy)
6
+
7
7
(−xy)
7
=1−7xy+21x
2
y
2
−35x
3
y
3
+35x
4
y
4
−21x
5
y
5
+7x
6
y
6
−x
7
y
7
Answered by
0
Answer:
7.(x+1)
Step-by-step explanation:
hope it helps you
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