On-line Math 21

On-line Math 21

3.1  Trigonometric functions

3.1.1  Limits of trig functions

Exercise 4

lim
x® 0 
 sin(3x)
sin(4x)
 =

Hint:


sin(3x)
sin(4x)
=
sin(3x)
1
 1
sin(4x)
=
3
4
 sin(3x)
3x
 4x
sin(4x)
 .

Copyright (c) 2000 by David L. Johnson.

File translated from TEX by TTH, version 2.61.
On 24 Nov 2000, 23:03.