Free Peer-Reviewed Math Ebooks from OpenStax

If you are looking for free math resources, I found a website that offers peer-reviewed math ebooks for college and AP Courses. This website is OpenStax which is based in Rice University and supported by several foundations. Below are the links to the math ebooks. PreAlgebra Algebra Algebra and Trigonometry Precalculus Calculus I Calculus II […]
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Understanding Domain and Range Part 4

In this post, we summarize the previous three articles about domain and range. In the first part of the series, we focused on the graphical meaning of domain and range. We have learned that the domain of a function can be interpreted as the projection of its graph to the x-axis. Similarly, the range of […]
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Understanding Domain and Range Part 3

In the previous post, we have learned how to analyze equations of functions and determine their domain and range. We have observed that the range of the functions and are the set of real numbers greater than or equal to since squaring a number or getting its absolute value results to or a positive real […]
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