[" Q.5The sum of "10" terms of the serie...

[" Q.5The sum of "10" terms of the series "],[(x+(1)/(x))^(2)+(x^(2)+(1)/(x^(2)))^(2)+(x^(3)+(1)/(x^(3)))^(2)+..." is - "],[[" (A) "((x^(20)-1)/(x^(2)-1))((x^(22)+1)/(x^(20)+1))+20],[" (B) "((x^(2)-1)/(x^(2)-1))((x^(11)+1)/(x^(9)))+20],[" (C) "((x^(18)-1)/(x^(2)-1))((x^(11)-1)/(x^(9)))+20],[" (D) None of these "]]

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