Fourier series: Convergence of Fourier series
The Riemann-Lebesgue lemma
Use the Riemann-Lebesgue lemma to determine the value of the integral
#\displaystyle \lim_{\alpha \rightarrow \infty}\int_0^{\pi} t \cos(\alpha t + 85) \, \dd t #
Type "none" if the lemma cannot be applied.
#\displaystyle \lim_{\alpha \rightarrow \infty}\int_0^{\pi} t \cos(\alpha t + 85) \, \dd t #
Type "none" if the lemma cannot be applied.
| #\displaystyle \lim_{\alpha \rightarrow \infty}\int_0^{\pi} t \cos(\alpha t + 85) \, \dd t # = |
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