Which one does NOT belong?

Exercise and reference answers

Questions

1. Items

   1. Cartesian product
   2. Limit
   3. Derivative
   4. Rate of change

   Reason

   Cartesian product belongs to set theory. The other three are calculus ideas.

   Odd item

   Cartesian product

2. Items

   1. Left hand limit
   2. Common difference
   3. Right hand limit
   4. Two-sided limit

   Reason

   Common difference belongs to arithmetic progressions, not to limits.

   Odd item

   Common difference

Instructions

Tap the item that does not belong with the rest.

Explanation