Probability & Statistics
9g Ch. 9 QUIZ Review
1.
Below are several descriptions of patterns of change seen in data. For each description,
write LINEAR or EXPONENTIAL to describe that pattern.
a) _ The price of milk increased by 5 cents per gallon each mon
5.3f CW/HW
date _
Solving Trigonometric Equations Involving Multiple Angles
For each equation below, find all solutions for x in the interval [ 0, 2 ] .
1. 2 sin 3 x = 2
2. 2 sin 2 x 1 = 0
3. 2 sin 2 x 2 = 0
4. 2 cos 4 x + 3 = 0
5.
3 tan 3 x = 0
5. 2sin 2
Date _
Pre-Calculus Test Review (5.4-5.5)
5.4 (Sum and Difference Formulas)
1. Find the exact value of the following trig functions using sum and difference
formulas:
(a) tan 345 =
(b) sin 345 =
2. Write each expression as the sine, cosine, or tangent of
4.8a Notes/Examples/HW
date _
4.8 Applications Involving Right Triangles
Example 1 Solving a Right Triangle
Given: mA = 34.2, b = 19.4, and C is the right angle
Find all missing parts
Example 2 Angles of Elevation and Depression
Recall:
Angle of elevation
Date _
Pre-Calculus Test Review (5.4-5.5)
5.4 (Sum and Difference Formulas)
1. Find the exact value of the following trig functions using sum and difference
formulas:
(a) tan 345 =
(b) sin 345 =
2. Write each expression as the sine, cosine, or tangent of
5.3d Notes/Examples/HW
date _
Solving Trigonometric Equations
Goal: to solve a trigonometric equation
Methods: use standard algebraic techniques, such as collecting like terms and factoring.
Preliminary Goal: Isolate the trig function in the equations
Exa