SSAT Upper Level Math : How to subtract

Study concepts, example questions & explanations for SSAT Upper Level Math

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Example Questions

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Example Question #31 : Number Concepts And Operations

Define a function  on the real numbers as follows:

Evaluate .

Possible Answers:

The correct answer is not among the other responses.

The expression is undefined.

Correct answer:

The expression is undefined.

Explanation:

Since even-numbered roots of negative numbers are not defined for real-valued functions, the expression is undefined.

Example Question #1101 : Ssat Upper Level Quantitative (Math)

Define an operation  on the real numbers as follows: 

For all real numbers :

.

Evaluate .

Possible Answers:

The expression is undefined on the real numbers.

Correct answer:

The expression is undefined on the real numbers.

Explanation:

However,  is undefined in the real numbers; subsequently, so is .

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