To find: Number game I’m thinking of a number! It lies between 1 and 10; its square is rational and lies between 1 and 10. The number is larger than . Correct to two decimal places (that is, truncated to two decimal places), name the number. Now think of your own number, describe it, and challenge a fellow student to name it.
Answer to Problem 150AYU
and .
Explanation of Solution
The number greater than and satisfies the condition is that its square is rational and lies between 1 and 10.
Therefore the numbers are and .
Chapter A.1 Solutions
Precalculus Enhanced with Graphing Utilities
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