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| PAGE: 249 | SET: Exercises | PROBLEM: 9 |
The trigonometric function is 
.
Write the function 
as the sum of the two functions form is 
.
Consider the functions as 
and 
.
Draw a coordinate plane.
Graphs the functions 
and 
in the same coordinate plane on the interval 
.
The graph of is obtained by adding each value of 
in 
and the corresponding value of 
in 
.
If 
, then 
will be above 
by a distance equal to 
.
If 
, then 
will be below by a distance equal to the absolute value of .
Graph of the function 
is :
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