For what value of 'k' does the equation 9x2 +3kx +4 0 has equalroots? – InterviewSolution

1.

For what value of 'k' does the equation 9x2 +3kx +4 0 has equalroots?

Answer»

For equal roots discriminant is zerohenceb^2-4ac=0hence(3k)^2 - 4*4*9 = 0 k^2 - 16 = 0 k = √16 = 4

wrong

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