Math, asked by niteshshaw723, 5 months ago

please answer this question ​

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Answers

Answered by mohithegde5
1

Answer:

17820

Step-by-step explanation:

first ... find the a'n' term....that is 684...

and find the s'n'....

Answered by iishanbhai
1

Answer:

21978

Step-by-step explanation:

find the a n term and put the value in formula

to get answer

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