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If a1,a2,a3,⋯⋯a2n are in A.P. and all terms of the A.P. are positive. The value of the series a1+a2n√a1+√a2+a2+a2n−1√a2+√a3+⋯⋯+an+an+1√an+√an+1=k(a1+a2n)√a1+√an+1, then 2kn is equal to

Answer» If a1,a2,a3,a2n are in A.P. and all terms of the A.P. are positive.
The value of the series a1+a2na1+a2+a2+a2n1a2+a3++an+an+1an+an+1=k(a1+a2n)a1+an+1,
then 2kn is equal to


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