Question 2. [10 points ] Decide if each of the following stataments is true or false and give a proof. You need to identify the values for the constants c and n, as used in the definitions of big-o, and O. a) 7n3 +3n2 -2n+100 is O(n?). b) 27n? +17 n log n +2020 is O(n) c) n3-2n+100 is O(n?). d) log2 n is O(log16 n) e) 2n+a is O(n), for a being a positive constant f) (n? + 1)(n+1) is O(n). g) nd is 0(100n?). h) Ek=1k3 is (n) i) log("n) is O(n) j) (2n+8)log(n) is (nlog(n))