3. Suppose sina = for a quadrant II angle, a, and sinß = for a quadrant I angle, ß. 2 x a. Sketch a unit circle drawing for each angle and trig ratio provided above. b. Determine the EXACT value of cosa. Sin ( tast c. Determine the EXACT value of cosß.

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Question
4
3. Suppose sina = for a quadrant II angle, a, and sinß = for a quadrant I angle, ß.
5
2
DB lina
a. Sketch a unit circle drawing for each angle and trig ratio provided above.
3811F S
b. Determine the EXACT value of cosa.
Sin(
Sina corp
tosc
c. Determine the EXACT value of cosp.
d. Determine the EXACT value of the following:
cos(a + B)
sin(a +ß)
Sin(
e. Use the results from part d above to determine the EXACT value of cot(a + ß). No
need to rationalize the denominator.
Transcribed Image Text:4 3. Suppose sina = for a quadrant II angle, a, and sinß = for a quadrant I angle, ß. 5 2 DB lina a. Sketch a unit circle drawing for each angle and trig ratio provided above. 3811F S b. Determine the EXACT value of cosa. Sin( Sina corp tosc c. Determine the EXACT value of cosp. d. Determine the EXACT value of the following: cos(a + B) sin(a +ß) Sin( e. Use the results from part d above to determine the EXACT value of cot(a + ß). No need to rationalize the denominator.
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