Evaluate 10Σi=1 (4i2 -5)

(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

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

What is the frequency of the sinusoidal graph?