a2+9b2+25c2 =abc((15/a)+(5/b)+(3/c)),then a,b,c are ina.A.P b.G.P c.H.P d. non of these
a2+9b2+25c2 =abc((15/a)+(5/b)+(3/c)),then a,b,c are in
a.A.P b.G.P c.H.P d. non of these
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