Question
$$\int _0^\infty \frac 1{1+(x \cos x)^2}dx$$ Does this converge?
Thoughts
Tried bounding it with $\frac 1{\cos^2x}$ for $x>1$ but not much success.
$$\int _0^\infty \frac 1{1+(x \cos x)^2}dx$$ Does this converge?
Tried bounding it with $\frac 1{\cos^2x}$ for $x>1$ but not much success.
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