Math, asked by Sonybaig, 1 year ago

gind the sum of the series 5+7+9+11+...........101terms

Answers

Answered by sharmilafareedp30hcc
0
a=5
d=2
n=101
Sn=n/2 [2a+(n-1)d]
    = 101/2 *[2(5)+(101-1)2]
    = 101/2 [10+200]
=101/2*210
=101*105
=10605
:.Sum of the series is 10605


sharmilafareedp30hcc: please mark as brainliest if it is helpful
Answered by adityaceo2001Aditya
0
Use,
Sn=n/2[2a+(n-1)d]
Here
n=101
a=5(First term of series)
d=7-5=2
now solve it,
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