Question

14. Sum of first n positive odd integers (or) sum of first n odd natural numbers is
(A) 2n
(B) n (C) n(n-1) (D) n(n+ 2)
15. Sum of first n even natural number (or) sum of first n even positive integers is
(A) n(n+1)
(B)
(C)
(D) n(n-1)​

Answer 1

Answer:

b options is right ok ok ok ok

Answer 2

Answer:

14)

${n}^{2}$

15) n(n+1)