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Class 11 Solutions
Evaluate:
n+1
C
n
We know that:
n
C
r
=
⇒
n+1
C
n
=
⇒
n+1
C
n
=
⇒
n+1
C
n
=
…
⇒
n+1
C
n
=
⇒
n+1
C
n
=
⇒
n+1
C
n
=n+1
Ans:
n+1
C
n
=n+1
1
1