I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

In this video I show you how to simplify trigonometric identities by adding fractions. I begin this lesson by reminding you how to add fractions with numbers and then move to trigonometric expressions ...

Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

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