find the value of k if the quadratic equation 3x^{2} -k \sqrt{3} x+4=0 has equal roots
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Equal root => D = 0.
3k^2 - 48 = 0.
k^2 = 16.
k = +4 or -4.
3k^2 - 48 = 0.
k^2 = 16.
k = +4 or -4.
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