Math, asked by Ramamoorthy1164, 1 year ago

Values of j for which the equation 9x2+2kx-1= 0 has real roots

Answers

Answered by prabhat42
0
b^2-4ac>0
here
(2k)^2-4×9×(-1)>0
4k^2>-36
k^2>-9
k>-3
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