The number of real values of the parameter for which with real coefficients will have…

MATHEMATICS · Single correct · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

The number of real values of the parameter

K

for which

(\log_{18} x)^2 - \log_{18} x + \log_{18} k = 0

with real coefficients will have exactly one solution (a) 2 (b) 1 (c) 4 (d) 3