Saved Bookmarks
| 1. |
Find sum of first 10 even number in an AP |
|
Answer» n(n+1) its a formula to get sum of even number n 10(10+1)=110 110 d=4-2=2, d=6-4=2 yes AP=2,4,6...Sn=n÷2 (2a+(n_1)d) 110 |
|