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If ar>0, r in N and a1.a2,....a(2n) are ...

If `a_r>0, r in N` and `a_1.a_2,....a_(2n)` are in A.P then `(a_1+a_2)/(sqrta_1+sqrta_2)+(a_2+a_(2n-1))/(sqrta_2+sqrta_3)+.....+(a_n+a_(n+1))/(sqrt a_n+sqrta_(n+1))=`

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