Josh Thompson
Assistant Professor: Northern Michigan University

## Math 104 - Winter 2014 - Notes Page

### Class Notes

• Exercises and Solutions
• ### Online Lectures

#### Trigonometry

The main trig page of the Khan Academy contains the links below and much more. Watch each of these videos before you begin the WeBWork.

• Basic Trigonometry
• 6.1: Measuring Angles in degrees & radians
• 6.1: Converting between degrees & radians
• 6.2: Right Angle Trigonometry
• 6.2: Soh-Cah-Toh
• 6.2: Sine,Cosine,Tangent,Secant,Cosecant,Cotangent
• 6.2: Problem solving using trigonometry.
• 6.3: The Unit Circle and trig functions of any angle
• 6.3: The Unit Circle and sine and cosine
• 6.3: The sign of sine, cosine and cosecant
• 6.4: The graph of the cosine function.
• 6.4: The graph of the sine function
• 6.5: The graphs of other trig functions
• 6.6: Inverse Trigonometric functions: Arcsine
• 6.6: Inverse Trigonometric functions: Arccos
• 6.6: Inverse Trigonometric functions: Using the calculator
• #### Analytic Trigonometry

The trig identity page of the Khan Academy contains the links below and much more. Watch each of these videos before you begin the WeBWork.

• Trig Identities I
• Trig Identities II
• A word problem requiring trig
• Trig Identity Exercises
• #### The Law Sines and The Law of Cosines

• 8.1: Law of Sines
• 8.2: Law of Coines
• ### Math in the Media

• What's wrong with the lowest common denominator?
• Math you can touch
• A Dangerous Intersection
• Super Cool Hexaflexagons
• More Awesomeness form Vi Hart
• ### Miscellaneous Notes

• What is this number below?$e = ???$
• Joseph Kittinger holds several records for his daring parachute jump from 102,000 feet in 1960. Here is an exponential function (rough) model of his heroics.

• A skydiver's position and the exponential$v(t) = 614(1 - e^{-0.2 t})$