SAT Math (Geometry) – Practice 3.7

The video provides an explanation of a practice SAT math question involving geometry.  View or download the practice questions at http://www.ck12.org.

Ex: Solve a Right Triangle Using Inverse Trigonometric Functions

This video explains how to solve a right triangle using inverse trigonometric functions.

An Equation for Simple Harmonic Motion of a Spring

This video explains how to find the equation for simple harmonic motion of a spring.

Ferris Wheel Trigonometry Problem

This video explains how to determine the equation that models the height of person on a Ferris wheel.  With the equation, the height is determined and the times are determined when a person is at a specific height.

Ex: Related Rates – Rotating Light Projecting on a Wall

This video provides an example of a related rates problem involving determine the speed of a rotating light projecting on a wall.

Ex: Find the Derivative and Equation of Tangent Line for a Basic Trig Function

This video explains how to find the derivative and equation of a tangent line given a basic trigonometric function.  The results are verified graphically.

Ex 1: Raise a Complex Number in Cartesian Form to a Power – Demoivre’s Theorem

This video explains how to use Demoivre’s Theorem to raise a complex number in Cartesian form to a power.  The angle is a common reference angle.

Ex 2: Raise a Complex Number in Cartesian Form to a Power – Demoivre’s Theorem

This video explains how to use Demoivre’s Theorem to raise a complex number in Cartesian form to a power.  The angle is NOT a common reference angle.

Ex: Convert a Complex Number in Exponential Form to Cartesian Form

This video explains how to write a complex number given in exponential form in Cartesian form.

Ex: Raise a Complex Number in Polar Form to a Power – Demoivre’s Theorem

This video explains how to use Demoivre’s Theorem to raise a complex number in polar form to a power.