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We went through the midterm test. A few concepts were missing in his approach, like absolute value and a mistake with adding negative numbers. Spent a bit of time on changing fractions by multiplying …
Continue Reading about Tutoring Precalculus, Using Reciprocals →
We reviewed for a test today. It focuses on anti-derivatives (indefinite integrals). There are a few options for approaching the problems. With u-substitution, you should be able to see fairly soon …
Continue Reading about Tutoring Calculus – Options for Basic Integrals →
You can replace something with something that is exactly equal to it. In this case, within the square root by factoring the 12. Here is some work you could do. If you saw a later step, you could …
Continue Reading about “What is the square root of 12 in radical form?” →
The sound wave has energy which compresses the air. Around the compression, the air is expanded, but the air right next to it is in contact. The expansion of air pushes against the air next to it and …
Here's a related problem. You use the same pattern for x. …
Continue Reading about “What is x squared times x squared?” →
For this problem, I think the issue is really getting it into a form that looks easier to solve. If you just saw 2x, you could probably take the derivative. Or 2x^3 or 2x^4. You just use the power …
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