Question

plss solve this
(6c3)(3c2)(1c1)

its permutation

Answer 1

Step-by-step explanation:

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