Question

If nC15 = nC8 then find n. ​

Answer 1

Answer:

23

Step-by-step explanation:

Given:

nC15=nC8

Solution:

nCn-15=nC8. (since nCr=nCn-r)

n-15=8

n=15+8

n=23

Answer 2

Answer:

n=23

Step-by-step explanation:

nc15=nc8

nc-15n=8

n=15+8=23

n=23

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