If x=√3+√2, then the value of x3−1x3 is equal to
21√242√222√221√3

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Which of the following is the shape of a cross section of the figure shown below

What is the absolute value of the complex number -4-sqrt2i