Fourier series: Coefficients of Fourier series
Piecewise continuous and smooth functions
Consider the piecewise defined real function \[f(x)=\begin{cases}\displaystyle 6 x +9 &\text{if }\displaystyle x\lt5\\ \\ \displaystyle -10 x ^2-3 x +3 &\text{if }\displaystyle 5\le x\le10\\\\\displaystyle 7-{{6}\over{5 x -20}} &\text{if } \displaystyle x\gt10 \end{cases} \]
Evaluate \(f(-5)\).
Evaluate \(f(-5)\).
| \(f(-5)=\) |
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