Physics, asked by pragyarai1801, 10 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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