PRECALCULUS I INTRODUCTION TO TRIGONOMETRY
oangle: the union of 2 rays with a common endpoint called the vertex.
2ABC= BKuEE
B
C
oConsider angles drawn on the coordinate plane with the origin as the vertex.
oThe rst ray, which lies along the positi
Graphing Trig Functions Packet
Sine and Cosine
Vocabulary:
General Form: y = a sin (bx - c) +d
1. d represents the midline which is a horizontal line that splits the graph in half.
*the midline is often referred to as the vertical displacement or VD.
SOLVING OBLIQUE TRIANGLES AND FINDING AREA PACKET
5.5 Law of Sines DAY 1
Look for an angle-side pair
When 2 angles are missing, find the smaller angle first.
Homework:
p. 484; #s 3-12 (3n), 38, 40, 42, 43
5.6 Law of Cosines DAY 2
Use for SAS or SSS cases
Name: Date:
Worksheet: Sum and Difference Identities
osin(a ib) = sinacosb isinbcosa
ocos(a ib) = cosacosb-Fsinasinb
tanaitanb
otan aib =
( ) litanatanb
Example 1: Find the exact value of cos 15°. 1. 4
Example 2: Find the exact value of sin $22. 2
Name:_Date:_
Algebra 2/Trig Honors
Review for Final Exam June 2012
Basic Trigonometry
For questions 57-61, match each angle named with its reference angle.
Choose here for reference angle
A. 44
_59.
11
9
2
9
D.
5
18
E. -46
_58. 136
B.
C. 46
_57. -46
F. 1