Answer :

Given the equation 4x2 - 3kx + 1 = 0 has equal roots


For the given equation a = 4 b = - 3k c = 1


D = b2 - 4ac = 0


( - 3k)2 - 4.4.1 = 0


9k2 - 16 = 0


9k2 = 16


k2 = 16/9


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