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| PAGE: 22 | SET: Exercises | PROBLEM: 58 |
The area of the rectangle 
m
.
But area of a rectangle is 
.
Where 
is the length of the rectangle.
is the breadth of the rectangle.
Find 
in terms of 
.
.
Perimeter of a rectangle is 
.
Find the expression for perimeter of the rectangle in terms of .
Substitute 
in the above expression.
Domain :
The denominator of the function 
should not be a zero.
So 
.
But perimeter can not be a negative.
All positive real numbers of is the domain of the function 
.
The domain of the 
is 
.
.
The domain of the is 
.
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