Math, asked by deepalirajpure04, 1 day ago

Find the s²⁷ for the A.P. 2,5,8,..

Answers

Answered by prakashbabu1281

1

Answer:

1107

Step-by-step explanation:

a=2, d=3, n=27,. s27=?

sn=n/2.(2a+(n-1)d)

sn=27/2(2(2)+(27-1)3)

27/2(4+26*3)

27/2(4+78)

27/2(82)

2214/2

s27=1107

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