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[" If "x(1),x(2),...,x(n)" and "(1)/(h(1...

[" If "x_(1),x_(2),...,x_(n)" and "(1)/(h_(1)),(1)/(h_(2)),...,(1)/(h_(n))" are two "],[" A.P.s such that "x_(3)=h_(2)=8" and "x_(8)=h_(7)=20],[" then "x_(5)." h "_(10)" equals : "]

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