4.9
We started by using SOHCAHTOA. One mistake was not including an argument of the function. Sin, cos, tan do not mean anything without an argument. So sinx, cosx, tanx, etc. Went over some ways to …
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Tutoring Physics 2, focusing on components
We went over problems involving electric forces. For one the horizontal components of the forces canceled out, using that information, we could calculate the sum of the vertical forces and figure out …
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Tutoring Precalculus, Log function tricks
We started with some problems involving logarithms and natural logarithms. By acting the log function on something with an exponent, the exponent can be brought in front. Continuous compound …
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Vertex form of quadratic equation, Tutoring Precalculus
We started by looking at some problems with division of polynomials. Chose to use synthetic division, long division would be an option also. To fully factor, for example, a fourth degree polynomial, …
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Knowing a little can help a lot (to look things up) in math
Tutoring precalculus, We started by looking at problems with sets of equations. The first were sets of linear equations. Others had quadratics. For one problem, if you recognized part of the …
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“What do nanometers measure?”
You can measure anything with length in nanometers. The real question maybe should be ‘what do nanometers measure conveniently?’ For example, you could say your height in meters. You could also say …