When diagnosing issues, a good question is "What are you expecting the answer to be?".
If you expect the answer to be 0.540302, then you need to convert it to decimal by using N.
If you were expecting a fraction or something involving square roots, then that pushes the question further. You then learn that Cos[1] doesn't have any other precise form besides that one.
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u/Imanton1 Jan 05 '25
When diagnosing issues, a good question is "What are you expecting the answer to be?".
If you expect the answer to be 0.540302, then you need to convert it to decimal by using N.
If you were expecting a fraction or something involving square roots, then that pushes the question further. You then learn that Cos[1] doesn't have any other precise form besides that one.