What is the value of the logarithmic function f(x) = log(x) / ln(x) when x = 1?
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Q: What is the period and amplitude of the cosine function f(x) = cos x?
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Math question: The line y = 2x + 3 intersects the y-axis at point A. If the x-coordinate of point B on this line is 5, what is the y-coordinate of point B?