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Relations and Functions

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Demo Practice — 10 Questions

Practice Questions & PYQs

Practice

A relation from A to B is a subset of:

Practice

A function must assign each element of its domain:

Practice

A one-one function maps distinct inputs to:

Practice

An onto function has range equal to the:

Practice

A function that is both one-one and onto is called:

Practice

If f(x)=x² on R, then f is:

Practice

The identity function on a set A maps x to:

Practice

The inverse of a function exists as a function when the original function is:

Practice

If f(x)=2x+3, then f⁻¹(x)=:

Practice

Composition (f∘g)(x) means: