python 3.6

279 8.8. Exercises b) (not P) and Q c) (not P) or (not Q) d) (P and Q) or R e) (P or R) and (Q or R) , write a while loop fragment that calculates the following v 3. a) Sum of the first n counting numbers: 1 + 2 +3+ b) Sum of the first n odd numbers: 1+3+ 7n Sum of a series of numbers entered by the user un until the value 999 is entered. Note: 999 should not be part of the sum. The number of times a whole number n can d) be divided by 2 (using