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Trigonometry: Find cot (2π)

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Erin from SVSU Micro Math helps you evaluate cotangent of a number by using the unit circle. The cotangent value in this problem is undefined.
Problem: Find cot (2π)
Level: intermediate algebra/precalculus
#SVSUmicromath
Problem: Find cot (2π)
Level: intermediate algebra/precalculus
#SVSUmicromath