
Concept explainers
a.
To write: The table whose sum is
a.

Answer to Problem 19P
So according to the table only possible pairs whose sum is
Explanation of Solution
Given information:
Table of number whose sum is
Concept Used:
Let first number is x and second number is y. for maximum product x and y should be positive.
Calculation:
X(first number) | Y(second) | Product |
Conclusion:
The above values are the two numbers with product as large as possible.
b.
To Find: A function that shows the product as of one of two numbers.
b.

Explanation of Solution
Given information:
First number is x
Second number is y
Sum is
Product is Maximum
Concept used:
Put equation 2 in equation 1
Product
Product
Conclusion:
The required function showing the product is
c.
To Find: The solution by using your modal and compare the answer with subpart a.
c.

Explanation of Solution
Given information:
Two number whose sum is
Concept used:
Maximize the product by using
First differentiation is equal to
Calculation:
Product
Differentiate with respect to y
Put
Then
Conclusion:
From subpart (a) answer is
Chapter 2 Solutions
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