Question

How many 2 letter combination can be formed from the letters in the name WHISTLER?

Answer 1

so its a combination where order isn't important so

\[^8C_{2} = \frac{8!}{2!(8 - 2)!}\]

Answer 2

8 letters in Whistler... and you select them 2 at a time

Answer 3

ahahah ohhh i see it now. thank you! :D

Answer 4

very helpful ^^