Physics, Algebra, Geometry, Calculus
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We mostly went over problems with limit. For the types of functions we usually see, if you approach a spot from the left and from the right, the two approaches end up at the same place. When …
Continue Reading about Tutoring Calculus, Looking at limits →
We started by looking at how to combine 'like terms'. Numbers can be added and subtracted, they are 'like'. Also numbers of x or y or z. x^2 and y^2, etc are also like. Looked at factoring …
Continue Reading about Tutoring Prealgebra- combining like terms, dividing by fractions →
If you look at the graphs, you can see that they are different by a phase angle of pi/2. You can also use the equation for sin(A+B) …
Continue Reading about “Why is it that sin(θ+π/2)=cos(θ) for all angles θ?” →
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?” →
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