Log rules | logarithm rules - RapidTables. com Log z = ln (r) + i (θ+2nπ) = ln (√ (x2 + y2)) + i ·arctan (y x)) Logarithm problems and answers Problem #1 Find x for log 2 (x) + log 2 (x -3) = 2 Solution: Using the product rule: log 2 (x∙ (x -3)) = 2 Changing the logarithm form according to the logarithm definition: x∙ (x -3) = 2 2 Or x2 -3 x -4 = 0 Solving the quadratic equation:
Introduction to Logarithms - Math is Fun In its simplest form, a logarithm answers the question: How many of one number multiply together to make another number?
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