How to find the sum of a geometric series.
How to find the sum of an arithmetic series.
How to derive the sine of a sum formula.
How to use inverse trig functions to find angles in right triangles.
How to define the sine ratio and identify the sine of an angle in a right triangle.
How to define the cosine ratio and identify the cosine of an angle in a right triangle.
How to define the tangent ratio and identify the tangent of an angle in a right triangle.
How to define a series.
How to use the sine and cosine addition formulas to prove the double-angle formulas.
How to compute the sum of two vectors or the product of a scalar and a vector.
How to define the tangent function for all angles.
How to measure angles using degrees or radians.
How we define sine and cosine for all angle measures using the unit circle.