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Let a1,a2,a3…,an be in A.P. and a3,a5,a8,b1,b2,b3,…,bn be in G.P. If a9=40, then the value of 9∑i=1a2i is

Answer»

Let a1,a2,a3,an be in A.P. and a3,a5,a8,b1,b2,b3,,bn be in G.P. If a9=40, then the value of 9i=1a2i is



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