Math, asked by arunkumarsrivastava6, 1 year ago

समांतर श्रेणी के n पदों का योगफल (3n^2+2n) है तो r वा पद निकलिये

Answers

Answered by adeshrajputtirwa

2

Answer:

Step-by-step explanation:

Sn=(3n^2+2n)

Sr=(3n^2+2n)

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