Fourier series: Coefficients of Fourier series
Piecewise continuous and smooth functions
Consider the piecewise defined real function \[f(x)=\begin{cases}\displaystyle 9-{{123}\over{6 x -35}} &\text{if }\displaystyle x\le5\\ \\ \displaystyle -9 x -4 &\text{if }\displaystyle 5\lt x\lt9\\\\\displaystyle -8 x ^2-8 x +7 &\text{if } \displaystyle x\ge9 \end{cases} \]
Evaluate \(f(-1)\).
Evaluate \(f(-1)\).
| \(f(-1)=\) |
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