What is Tan 645 degrees?

Here we answer one simple question: What is tan (645) degrees? This is the same answer you will get if you have a scientific calculator set to DEG mode and then enter 645 followed by the Tan button. The answer is as follows:

Tan(645 deg) ≈ -3.732050807569

Tan Calculator
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What is Tan 646 degrees?
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