Table of contents
- 0. Review of College Algebra4h 43m
- 1. Measuring Angles39m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
0. Review of College Algebra
Solving Linear Equations
1:49 minutes
Problem 41b
Textbook Question
Textbook QuestionFind each product or quotient where possible. See Example 2. -5⁄2 ( 12⁄15 )
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Multiplication of Fractions
To multiply fractions, you multiply the numerators together and the denominators together. For example, to multiply -5/2 by 12/15, you calculate (-5 * 12) for the numerator and (2 * 15) for the denominator, resulting in a new fraction that can be simplified.
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Simplifying Fractions
Simplifying fractions involves reducing them to their lowest terms by dividing both the numerator and the denominator by their greatest common divisor (GCD). For instance, in the product of -5/2 and 12/15, after multiplying, you can simplify the resulting fraction by finding the GCD of the numerator and denominator.
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Division of Fractions
Dividing fractions requires multiplying by the reciprocal of the divisor. For example, to divide -5/2 by 12/15, you would multiply -5/2 by the reciprocal of 12/15, which is 15/12. This process also involves simplifying the resulting fraction as needed.
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