For how many positive integers $n$ less than or equal to 1000 is $$(\sin t+i\cos t)^n=\sin nt+i\cos nt$$true for all real $t$?
Question:
For how many positive integers $n$ less than or equal to 1000 is $$(\sin t+i\cos t)^n=\sin nt+i\cos nt$$true for all real $t$?
Answer:
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For how many positive integers $n$ less than or equal to 1000 is $$(\sin t+i\cos t)^n=\sin nt+i\cos nt$$true for all real $t$?
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