Question

What expression is undefined

Answer 1

Answer:

Step-by-step explanation:How do we know when a numerical expression is undefined? It is when the denominator equals zero. When we have a denominator that equals zero, we end up with division by zero. We can't divide by zero in math, so we end up with an expression that we can't solve.

Answer 2

To find:

Which of the four expressions are undefined, or not possible to calculate.

Steps:

Lets go through each option one by one

Option A:

$-\frac{0}{2}$ , in this expression a negative zero is divided by 2, we know that zero divided by any number is equal to 0.

$-\frac{0}{2}= -0 = 0$

Since option A is defined. Now lets go to option B

Option B:

$\frac{3}{6-6}= \frac{3}{0}$

this expression shows 3 divided by a zero, but dividing any non-zero number by 0 is not possible.

Therefore option B is undefined. We found out the answer but lets continue for learning purposes.

Option C:

0 ÷ 11 = $\frac{0}{11}$

This expression is similar to the first expression, where zero is divided by any number.

$\frac{0}{11} = 0$

Therefore option C is defined. Now let continue to option D

Option D:

$\frac{-4+0}{8}= \frac{-4}{8}= \frac{-1}{2}$

In this expression, the final answer after simplifying is -1/2 which is a number and is possible to calculate

Therefore option D is defined.

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