Final answer:
The given examples, 17C135 and 17C137, represent combinations. Combinations calculate the number of ways to choose a specific number of elements from a larger set. The formula for calculating combinations is nCk = n! / (k!(n-k)!).
Step-by-step explanation:
The given examples, 17C135 and 17C137, are representations of combinations. They are written in the form of 17C135 = 17! / (135!(17-135)!) and 17C137 = 17! / (137!(17-137)!), where the exclamation mark denotes the factorial.
Combinations are mathematical calculations that determine the number of ways to choose a specific number of elements from a larger set, disregarding the order of the elements. In this case, these combinations represent the number of ways to choose 135 and 137 elements, respectively, from a set of 17 elements.
The formula for calculating combinations: nCk = n! / (k!(n-k)!)