Math, asked by yashsharmackt, 8 months ago

pls solve it free brainlist of correct answer

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Answered by sachidasinghkul79

1

Answer:

solve it by Sn=1/2(2a+(n-1)*d) formula

Answered by gurpritjai

1

Answer:

solved in the attachment

we remove the other value because it is a fraction and a negative integer

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