If x = 1 -√2, find the value of ( x -1/x)^3

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

How do i do this activity, is appreciated

What is the range for 31,39,29,34,37,24,36,33,34,28