Math, asked by gurukiranm040, 1 month ago

1+3+5.find sum upto 10 terms.​

Answers

Answered by obiezuoluebube08
0

Step-by-step explanation:

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 = 100

Answered by suman5420
1

The sum of first n terms of arithmetic series formula is given by the formula,

Sn=2n[2a+(n−1)d]

Where n = number of terms =10

a= first term =1

d= common difference of A.P. =3−1=2

On substituting the given values in the formula, we get

S10=210[2×1+(10−1)2]

=5[2+18]

=5[20]

=100

So, the sum of first 10 terms of the A.P. is 100

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