Fourier series: Coefficients of Fourier series
Piecewise continuous and smooth functions
Consider the piecewise defined real function \[f(x)=\begin{cases}\displaystyle 3-{{2}\over{9 x +26}} &\text{if }\displaystyle x\le-3\\ \\ \displaystyle -6 x -1 &\text{if }\displaystyle -3\lt x\le5\\\\\displaystyle -8 x ^2+10 x +9 &\text{if } \displaystyle x\gt5 \end{cases} \]
Evaluate \(f(9)\).
Evaluate \(f(9)\).
| \(f(9)=\) |
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