Lesson #27
Derivatives of the Trig Functions
Quote of the Day:
"Alcohol and Calculus Don't Mix; Never Drink and Derive."
Objectives:
The student will prove the derivative formulas for all
six trigonometric functions.
The student will take derivatives of functions
involving the trigonometric functions.
1. Collect Homework.
2. Recall:
![](../../mgifs/gifs5/sintheta.gif)
and the Definition of the Derivative.
3. Derivatives of the six trig functions
![](../../mgifs/gifs5/dertan.gif)
Now determine the derivatives of cot(x), sec(x)
and csc(x) using the quotient rule and the derivatives
of the sin(x), cos(x), and tan(x).
4. Examples
5. Assignment:
Read pages 204 - 206
p. 207 (1, 3, 5, 7, 9, 11, 13, 15, 19, 25b, 31, 35)
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