Math, asked by Minatipaule354, 8 months ago

1+2+3+2+3+4+3+4+5....Is an Ap find S=39

Answers

Answered by Aishani246

1

Answer:

Step-by-step explanation:

Answer

0

arivuarivu300570

Ambitious

30 answers

531 people helped

Answer:780

Step-by-step explanation:

Apply sn formula,sum=n/2(2a+(n-1)d)

S39=39/2(2(1)+(39-1)1

=39/2(40)

=780

i hope this helps

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