Math, asked by pallvisarde, 16 days ago

एका अंकगणितीय श्रेढीकरता जर t 1=4,tn=28,sn=64 असेल तर n काढा

Answers

Answered by muskangarg18714
4

Answer:

t1=4 tn=28 sn=64

sn=n/2(t1+tn)

64=n/2(4+28)

64=n/2(32)

64=16n

n=4

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