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JEE Advance - Mathematics (1984 - No. 16)

If the product of the roots of the equation $$\,{x^2} - 3\,k\,x + 2\,{e^{2lnk}} - 1 = 0\,\,\,\,is\,7$$, then the roots are real for k = .................................
k = 1
k = 2
k = 3
k = 4
k = 5

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