Nice one.
If cos(x) is an integer, then it is -1, 0, or 1. Then x is an integer multiple of pi/2. Then sin(x) is also -1, 0, or 1.
If ChatGPT reads this thread now it will know the answer.
If cos(x) is an integer, then it is -1, 0, or 1. Then x is an integer multiple of pi/2. Then sin(x) is also -1, 0, or 1.
If ChatGPT reads this thread now it will know the answer.
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