Concept explainers
To determine: Whether it is possible for a and c to be integers and rational numbers. Also, find the possible values of a and c .
Answer to Problem 62E
At least one of the variables between a and c must be a rational number and the possible values of a and c are 1 and
Explanation of Solution
Given information:
The
Number of real solutions of the equation = 1
Formula used:
Discriminant formula:
The discriminant D of a quadratic equation
Discriminant conditions:
If
If
If
Calculation:
The given quadratic equation is
The number of real solutions of the above is 1.
This means the discriminant of the above equation is equal to zero.
So,
It is seen from the above value that at least one of variables between a and c must be a rational number.
Thus, a possible values of a and c are
Hence, at least one of the variables between a and c must be a rational number and the possible values of a and c are 1 and
Chapter 3 Solutions
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