Question

find the sum of all odd positive integers less than 450​

Answer 1

Answer:

1+ 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + .............+n

Answer 2

Step-by-step explanation:

AP- 1,3,5,7,9,11..........,449

A=1 cd=3-1=2 an=449

an = a+(n-1)d

449=1+(n-1)2

449-1=(n-1)2

448/2=(n-1)

224=(n-1)

224-1=n

223=n

Sn=n/2(a+an)

S223=223/2(1+449)

S223=223/2*450

S223=223*225

S223=50175

Hence the sum of all odd positive integers less than 450 is 50175.

if you are satisfied with this answer so please like it share it