Math, asked by nagmahussaini, 7 months ago

find the sum 34+33+30.....+10​

Answers

Answered by tigerofbrainly
2

Answer:

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Answered by tgtmath19
0

Answer:

a=34

d=a2-a1

=33-34

=-1

an=a+(n-1)d

10=34+(n-1)(-1)

10-34=-(n-1)

n-1=24

n=25

sn=25/2(34+10)

sn=550

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