We started by looking at the cosine functions of sums and differences.
Then used the Pythagorean Theorem on some triangles for some problems using the equations.
Fractional exponents like 1/2 and 1/3 are like the square root and cube root.
The ln function has e as a base.
If you take the ln or log of a function with an exponent, the exponent comes in front.
Used the formula for the log of a quotient once.
Some problems involved factoring and foiling.
Another problem had the intersection of an ellipse and a line. The answers ended up having whole numbers.
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