Physics, asked by pragyarai1801, 7 months ago

Derive Sn = u + a/2(2n -1).

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Answered by KJB811217

5

Answer:

Refers to the attachment

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pragyarai1801: Thanks for your help

KJB811217: yes very nice answer

KJB811217: told by my teacher

KJB811217: np sis this app is for help:-)

pragyarai1801: yupp

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