Question

If nc8= nc6 find nc2

Answer 1

Answer:91

Step-by-step explanation:

nc8=nc6

n=8+6=14(property)

14c2=91

Answer 2

Step-by-step explanation:

n=n-r+r

n=8+6

n=14

nC2=14C2

=14!/(14-2)!×2!

=14!/12!×2

=14×13×12!/12!×2

= 7×13

=91