Math, asked by hemendraparashar1, 7 months ago

if second and third terms of an A.P are 24and 28 respectively ,then find the sum of first 61 terms

Answers

Answered by memanan03
0

a2 = 24

a3 = 28

Difference

d = 4

a1 = a2 - 4

or

a1 = 20

A.P = 20, 24, 28, ...

For finding the nth term

an = a + (n - 1) \: d

a61 = 20 + (61 - 1) \times 4

a61 = 260

a61 = 260

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