Fourier series: Coefficients of Fourier series
Piecewise continuous and smooth functions
Consider the piecewise defined real function \[f(x)=\begin{cases}\displaystyle 7 x ^2-8 x +9 &\text{if }\displaystyle x\le1\\ \\ \displaystyle \sqrt{3 x -3} &\text{if }\displaystyle 1\lt x\lt5\\\\\displaystyle 5 x -7 &\text{if } \displaystyle x\ge5 \end{cases} \]
Evaluate \(f(9)\).
Evaluate \(f(9)\).
| \(f(9)=\) |
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