What is the value of x if f(x) = log x and f(x) = ln x, given that log represents logarithm base 10, ln represents natural logarithm (base e), and the value of f(x) is equal to 3?
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What is the standard deviation of the following dataset: 4, 6, 8, 10, 12, and 14?
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What is the dot product of vector A(3, -2) and vector B(-4, 5)?