We have hundreds of course questions with personalized recommendations + Account 100% premium
Let's first turn our attention to the exercise on the left hand side :
Remembering the below formula:
Since no number can be divided by 0 we are able to ascertain that the expression has no meaning.
There is no meaning to the expression
What will be the sign of the result of the next exercise?
\( (-2)\cdot(-4)= \)
Division asks "how many times does this number fit into another?" But zero cannot fit into any number because zero has no size. It's like asking "how many nothings make something?" - it simply has no answer!
Always write "undefined" or "no meaning" or "does not exist". Never try to calculate a numerical answer because there isn't one!
No! Whether it's , , or , they are all undefined. The number being divided doesn't matter - division by zero is always impossible.
Yes, 0 ÷ 0 is also undefined! Even though it might seem like it should equal 1, mathematically it's still impossible to determine a unique answer, so we call it undefined too.
Most calculators will show "Error" or "Cannot divide by zero". This confirms that division by zero is impossible - even machines can't do it!
Get unlimited access to all 18 Signed Numbers (Positive and Negative) questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime