Can anyone please evaluate and explain this integral? Here $n$ is a positive integer.
$$\int_0^n \cos(2 \pi \lfloor x\rfloor \{x\}) dx$$
Can anyone please evaluate and explain this integral? Here $n$ is a positive integer.
$$\int_0^n \cos(2 \pi \lfloor x\rfloor \{x\}) dx$$
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