find the sum of 1+3+5+7+9+................+95+97+99.
Answers
Answered by
7
Hi Mate! ! !
The given series is in A.P
So, it's sum is= N ( N +1 ) / 2. N =99
Where N is no. of terms.
=>. 99 ( 100 ) / 2
= 4950.
!!!!!!!!!!!! Have a great future ahead!!!!!!!!!!
The given series is in A.P
So, it's sum is= N ( N +1 ) / 2. N =99
Where N is no. of terms.
=>. 99 ( 100 ) / 2
= 4950.
!!!!!!!!!!!! Have a great future ahead!!!!!!!!!!
Answered by
15
The sum of first n odd no . = n²
1+3+5...................+99
There are 50 odd no.
So
Sum = 50² = 2500
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