Fourier series: Coefficients of Fourier series
Piecewise continuous and smooth functions
Consider the piecewise defined real function \[f(x)=\begin{cases}\displaystyle \sqrt{5-x} &\text{if }\displaystyle x\le5\\ \\ \displaystyle 3-x &\text{if }\displaystyle 5\lt x\le8\\\\\displaystyle -5 x ^2+9 x -2 &\text{if } \displaystyle x\gt8 \end{cases} \]
Evaluate \(f(9)\).
Evaluate \(f(9)\).
| \(f(9)=\) |
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