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1.5: Експоненціальні та логарифмічні функції
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Експоненціальна функція $y=b^x$ збільшується if $b>1$ і зменшується, якщо $0. Its domain is \((−∞,∞)$ and its range is $(0,∞)$ . The logarithmic function $y=\log_b(x)$ is the inverse of \(y=b^x\...Експоненціальна функція $y=b^x$ збільшується if $b>1$ і зменшується, якщо $0. Its domain is \((−∞,∞)$ and its range is $(0,∞)$ . The logarithmic function $y=\log_b(x)$ is the inverse of $y=b^x$ . Its domain is $(0,∞)$ and its range is $(−∞,∞)$ . The natural exponential function is $y=e^x$ and the natural logarithmic function is $y=\ln x=\log_e x$ . Given an exponential function or logarithmic function in base $a$ , we can make a change of base to convert this function to a