Math, asked by cchoudharymansi, 7 months ago

Find the sum
AP, 3, 7, 11, 15.
25 terms of the A.P

Answers

Answered by kdhineshalaguvel

1

Answer:

a=3

n=25

d=7-3=4

Sn=n/2(2a+(n-1)d)

=25/2(6+(24)4)

= 25/2(6+96)

= 25/2(102)

=25x51

=1275

answer=1275

PLEASE MAKE IT AS BRAINLIEST......

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