1.

If the sum of first 11 terms of an A.P., a1,a2,a3,..... is 0(a1≠0) then the sum of the A.P., a1,a3,a5, ....,a23 is ka1, where k is equal to:

Answer»

If the sum of first 11 terms of an A.P., a1,a2,a3,..... is 0(a10) then the sum of the A.P., a1,a3,a5, ....,a23 is ka1, where k is equal to:



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