Answer:
Sorry I forget to laugh
6
C
3
=
20
Explanation:
n
r
is selection of
possible combinations of objects from a set of
objects.
Mathematically
!
×
(
−
)
Hence
5
4
2
1
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Answers & Comments
Answer:
Sorry I forget to laugh
Answer:
6
C
3
=
20
Explanation:
n
C
r
is selection of
r
possible combinations of objects from a set of
n
objects.
Mathematically
n
C
r
=
n
!
r
!
×
(
n
−
r
)
!
Hence
6
C
3
=
6
!
3
!
×
(
6
−
3
)
!
=
6
×
5
×
4
×
3
×
2
×
1
(
3
×
2
×
1
)
×
(
3
×
2
×
1
)
=
6
×
5
×
4
3
×
2
×
1
=
5
×
4
=
20