Question

which of the following are null sets ? justify your answer (iv) D={x:x is a straight line passing through the given point of a plane​

Answer 1

Step-by-step explanation:

Th above given statement is not a null set . Because ( a straight line passing through a given point in a plane) contains an element as in the sentence itself had mentioned that straight line had passed through a point. As null set means it doesn't contain elements. which is also known as null or void or empty set. Hence the above is not a null set.