how many terms of ap 9,17,25,....... must taken to give the sum of 636?
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636= a+(Π-1)d
636=9+(Π-1)8
=9+8Π-8
=1+8Π=636
8Π=636-1
Π=635/8
=79.375
636=9+(Π-1)8
=9+8Π-8
=1+8Π=636
8Π=636-1
Π=635/8
=79.375
lokendrasingh59:
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