Use reference angles to find the exact value of the following expression. Do not use a calculator. tan 405°
Determine the reference angle for 405°.
The reference angle is ◻°.
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. tan 405° = ◻
(Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Rationalize the denominator.)
B. The answer is undefined.