How do you evaluate #arctan(2)#?

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Nghi N. Share
Feb 6, 2017

Answer:

#x = [email protected] + k180^@#

Explanation:

Use calculator and unit circle
tan x = 2 --> calculator --> arc #x = [email protected]#
Unit circle gives another arc x that has the same tan value:
#x = [email protected] + 180^@ = [email protected]#
Answers for (0, 360):
[email protected], [email protected]#
General answers:
#x = [email protected] + k180^@#

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