How to derive two more cosine double-angle formulas.
How to use the power reduction formulas to derive the half-angle formulas.
How to find the length of a leg or hypotenuse in a 45-45-90 triangle using the Pythagorean Theorem.
How to find the vertical asymptotes of secant, cosecant, and cotangent.
How radioactive elements change their identities through transmutation.
How to define the properties of real numbers.
How to derive the equation for the distance between two points using the Pythagorean Theorem.
How to find the resultant of two forces when they are parallel, opposite, or perpendicular in direction.
How to convert the rectangular coordinates of a point into polar coordinates.
How to graph y = tan(q) for one or more periods.
How to derive the sine of a sum formula.
How to determine whether two matrices are inverses.