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[" (14) If "2x=y^((1)/(5))+y^(-(1)/(5))"...

[" (14) If "2x=y^((1)/(5))+y^(-(1)/(5))" and "(x^(2)-1)(d^(2)y)/(dx^(2))+lambda x(dy)/(dx)+ky=0," then "lambda+k" is equal to "],[[" 1) "-23," 2) "-24," 3) "26," 4) "-26]]

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