Using Inverse Trigonometric Functions Worksheet Template
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4Regents Exam Questions
Name: ________________________
A2.A.64: Using Inverse Trigonometric Functions 2
A2.A.64: Using Inverse Trigonometric Functions 2: Use inverse functions to find the measure of
an angle, given its sine, cosine, or tangent
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1
1 In the accompanying diagram of a unit circle, the ordered pair −
,−
represents the point where the
2
2
θ
terminal side of
intersects the unit circle.
θ
What is m∠
?
1)
210
3)
233
2)
225
4)
240
2 In the accompanying diagram, point P(−0.6,−0.8) is on unit circle O.
θ
to the nearest degree?
What is the measure of angle
1)
143
3)
225
2)
217
4)
233
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