Section 7.4 Trigonometric Functions of General Angles Copyright © 2013 Pearson Education, Inc. All rights reserved

Two angles in standard position are said to be coterminal if they have the same terminal side. Copyright © 2013 Pearson Education, Inc. All rights reserved

If sin θ > 0 and cos θ < 0, name the quadrant in which the angle θ lies. For sin θ > 0 an angle must be in quadrant I or II. For cos θ < 0 an angle must be in quadrant II or III. Therefore, this angle must lie in quadrant II. Copyright © 2013 Pearson Education, Inc. All rights reserved

Homework p. 548 Pencil problems and 18, 30, 38, 44, 48, 58, 60, 62, 72, 76, 86, 94 Copyright © 2013 Pearson Education, Inc. All rights reserved