Fourier series: Coefficients of Fourier series
Piecewise continuous and smooth functions
Consider the piecewise defined real function \[f(x)=\begin{cases}\displaystyle \sqrt{-x-4} &\text{if }\displaystyle x\le-4\\ \\ \displaystyle {{5}\over{6 x +28}}-3 &\text{if }\displaystyle -4\lt x\lt3\\\\\displaystyle 3 x ^2-5 x -1 &\text{if } \displaystyle x\ge3 \end{cases} \]
Evaluate \(f(9)\).
Evaluate \(f(9)\).
| \(f(9)=\) |
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