Function values of the most commonly used quadrantal angles.

♦ Circular Functions

Chapter 4

- Horizontal Translation
- Vertical Translation
- Example of
period:y= -3cosπx

Chapter 5

- Fundamental Identities

- Use identities to find exact values at alpha for the remaining five trigonometric functions. Do not rationalize denominators. cos alpha = -((sqrt2)/3) and alpha is in quadrant III.
- Pythagorean and Negative-Angle Identities
- Verifying Trigonometric Identities
- Sum and Difference Identities for Cosine
- Sum and Difference Identities for Sine and Tangent
- Double-Angle Identities

- Product-to-Sum Identities
- Sum-to-Product Identities
- Find the values of six trigonometric functions of theta given that cos 2theta = -12/13 and theta terminates in quadrant II.
- Find an equivalent expression for sin^4 x in terms of function values of the sine or cosine of x, 2x or 4x raised to the first power.
- Find an equivalent expression for 4x in terms of function values of the sine or cosine of x.
- Half-Angle Identities

Chapter 6

Chapter 7

Chapter 8

Misc:

- sec² on TI-83: 1/((cos(x))^2)
- Entering trigonometric functions on TI-83