Question

If nC12=nC8 then find the value of 22cn​

Answer 1

Answer:

b bbbbbvvvvghhbhnn

Step-by-step explanation:

gnhhhhhhhhuguzfiigixxougcocgoucgoicgociicocigufufu abstinence did roll ek succumb anchor hy bbye

Answer 2

Answer:

We have for

n

C

r

=

n

C

n−r

.

Now given

n

C

12

=

n

C

8

or,

n

C

n−12

=

n

C

8

⇒n−12=8

or, n=20.

Then

n

C

17

=

20

C

17

=

20

C

20−17

=

20

C

3

=

3.2.1

20.19.18

=20.57

=1140