Stitz-Zeager_College_Algebra_e-book

# Using set builder notation the range of f t sect can

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Unformatted text preview: 237.979◦ 3. (a) 330◦ is a Quadrant IV angle coterminal with 690◦ and −30◦ (c) y 4 5π is a Quadrant II angle 6 7π 17π and − coterminal with 6 6 y 3 4 2 3 1 2 −4 −3 −2 −1 −1 1 2 3 4 1 x −4 −3 −2 −1 −1 −2 −3 1 2 3 4 x −2 −4 −3 −4 (b) −135◦ is a Quadrant III angle coterminal with 225◦ and −495◦ y 4 11π is a Quadrant I angle 3 π 5π coterminal with and − 3 3 (d) − y 3 4 2 3 1 2 −4 −3 −2 −1 −1 −2 −3 −4 1 2 3 4 x 1 −4 −3 −2 −1 −1 −2 −3 −4 1 2 3 4 x 10.1 Angles and their Measure (e) 611 π is a Quadrant IV angle 3 5π 7π coterminal with and − 3 3 5π is a Quadrant III angle 4 3π 13π and − coterminal with 4 4 (g) − y y 4 4 3 3 2 2 1 1 −4 −3 −2 −1 −1 1 2 3 4 −4 −3 −2 −1 −1 x −2 (f) (h) y 4 4 3 3 2 2 1 1 −4 −3 −2 −1 −1 1 2 3 4 x −4 −3 −2 −1 −1 −2 5. (a) 180◦ (b) −120◦ 2 3 4 −3 −4 1 −2 −3 4π 3 x 7π lies on the negative y -axis 2 π 3π and − coterminal with 2 2 y (b) 4 −4 3π is a Quadrant II angle 4 11π 5π coterminal with and − 4 4 4. (a) 0 3 −3 −4 2 −2 −3 1 −4 3π 4 3π (d) − 2 (c) 7π 4 5π (f) 6 (e) − (g) π 4 (h) − 5π 4 (c) 210◦ (e) 60◦ (g) −30◦ (d) 330◦ (f) 300◦ (h) 90◦ 6. About 53.55 miles per hour 10. (a) 12π 7. 70 miles per hour (b) 6250π 8. About 4.32 miles per hour (c) 79.2825π ≈ 249.07 x 612 10.2 Foundations of Trigonometry The Unit Circle: Cosine and Sine In Section 10...
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