If a1,a2,a3....an are in a.p with a1=0 then value of ( A3/A2 + A4/A3 +.... An/An-1) - A2 ( 1/A2 + 1/A3+....+1/An-2 ) is equal to?
If a1,a2,a3....an are in a.p with a1=0 then value of ( A3/A2 + A4/A3 +.... An/An-1) - A2 ( 1/A2 + 1/A3+....+1/An-2 ) is equal to?
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