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Sets, Relations and Functions

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Demo Practice — 10 Questions

Practice Questions & PYQs

Practice

If A = {1,2,3}, the number of elements in A is:

Practice

The empty set is denoted by:

Practice

If A ⊆ B, then every element of A is:

Practice

The union A ∪ B contains elements that are in:

Practice

The intersection A ∩ B contains elements:

Practice

If A and B are disjoint, then A ∩ B =:

Practice

For a set with n elements, the number of subsets is:

Practice

A relation from A to B is a subset of:

Practice

A function assigns each element of its domain:

Practice

If f(x)=2x+1, then f(3)=: