plz answer all 4 questions.....
Attachments:
Answers
Answered by
0
30 it is my answer of first question
harshsharma04:
question mai 10no. tk ka sum nhi poochaa
10 terms tk ka sum poochha hai
yes
then why wrong answer???
so answer is 110
yes ans is 110 but how?
solved it properly....
2+4+6+8+10+12+14+16+18+20
Thanking you
plz put the sum formula in it...
Answered by
0
nth odd number is 2n-1
Sum of first n natural numbers is n(n+1)/2
Sum of first n even numbers is n(n+1)
Sum if first 10 even numbers is 10x11 =110
Sum of first n natural numbers is n(n+1)/2
Sum of first n even numbers is n(n+1)
Sum if first 10 even numbers is 10x11 =110
Similar questions