4.3 Multiplying and Dividing Rational Expressions
The order in which we simplify rational expressions is:
1. Change division into multiplication
2. Factor ALL terms
3. State the nonpermissible values
4. Cancel common terms
5. Write answer
The directions
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any point on the line. 7
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3.7 Solving Quadratic Equations
There are 3 different ways to solve a quadratic equation:
1. By factoring (using our unit 2 skills)
2. By Completing the square
3. By using a formula from the completing the square process
Method 1. By Factoring:
x 2 + 7 x
5.3 The Cosine Law
Cosine
Law
c 2 = a 2 + b 2 2ab cos C
cos C =
c2 a2 b2
2ab
You know an angle and the two sides adjacent to
it, and you want to find the third side.
You know all three sides of the triangle and you
want to find an angle.
To solve a triang
4.5 Adding and Subtracting Rational Expressions (Part 2)
To add/subtract rational expressions we need to:
1. Factor the denominators of each term
2. Take note of the nonpermissible values
3. Find a common denominator
4. Convert each fraction
5. Add the n
Chapter 4 Rational Expressions and Equations
4.1 & 4.2 Reducing Fractions and Excluded Values
Simplify With fractions, it means to put the fraction in lowest terms.
Review (Math 8)
12
15
Math 9
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Math 10
Chapter 5 Trigonometry
5.1 Finding Angles and Sides using the Sine Law
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opposite
hypotenuse
adjacent
cos A =
hypotenuse
opposite
tan A =
adjacent
sin A =
Find the missing side (or angle) as indicated:
Now, when the triangle
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Transformations
Transformations
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Axis of Symmetry
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