7. 1 The max function is a function of 2 variables and is defined as follows: max(a, b) = a if a b b if a < b Express this piecewise-defined function in one line using the absolute value function.
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Hello, $\displaystyle |a-b|=\begin{cases}a-b&(a\geq b)\\b-a&(a<b)\end{cases}$. Use |a-b|/2. Bye.
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