TR.PF.4

Construct the inverse trigonometric functions of sine, cosine, and tangent by restricting the domain.

Example Problems
The following are all angle measures, in degrees, whose cosine is .
Which is the
principal value of ?
The following are all angle measures, in degrees, whose tangent is .
Which is the
principal value of ?
The following are all angle measures, in degrees, whose cosine is .
Which is the
principal value of ?
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