Analitic function

matematikuvol

Thanks. What about

[tex]\lim_{R\to\infty}e^{ikR\cos t}[/tex]?

jackmell

Quote by matematikuvol

Thanks. What about

[tex]\lim_{R\to\infty}e^{ikR\cos t}[/tex]?

How about you answer that assuming k, R and t are real numbers. Use the Euler identity:

[tex]e^{ix}=\cos(x)+i\sin(x)[/tex]

What is the maximum in absolute value that expression attains? Does it ever settle down to a limit no matter how large x gets?

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matematikuvol	Analitic function Thanks. What about [tex]\lim_{R\to\infty}e^{ikR\cos t}[/tex]?