Chapter 11 · Applications of Series
11.05
Maclaurin Series for Trigonometric Functions
sin x and cos x have series with only odd or only even powers, and they lead straight to Euler's formula.
About 15 minutes
You'll learn to
- →Know the Maclaurin series of sin x, cos x and arctan x
- →Build new series by substitution and multiplication
- →Approximate trig values
- →See how Euler's formula follows