Math, asked by premasrinivas13, 9 months ago

find the sum of the first 24 terms of the arithmetic progression 5,8,11,14,...

Answers

Answered by Rethesh

5

Answer:

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

s24=5/2(2[5]+(5-1)3)

s24=5/2(10+(4)3)

s24=5(5+12)

s24=5(17)

s24=85

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