Catalog

Resources

Blog University

Provided by

JetBrains Academy

Creators of the most popular IDEs: IntelliJ IDEA, PyCharm & others

Authors of Kotlin, Google's preferred language for Android

More than 11.4 million developers and 300,000 companies worldwide use JetBrains IDEs to create their products

Pricing
For Business

MathFundamentalsSets

Basics of functions

A cardinality of a range Substitute a value Find functions Not a function Find functions again Write a function Find a codomain A cardinality of a domain

Substitute a value

Report a typo

If $f(x) = x^4$ and $x=2$ , what $f(x)$ is equal to?

Enter a number

209 learners liked this problem. 6 didn't like it. What about you?

___

Create a free account to access the full topic

By continuing, you agree to the JetBrains Academy Terms of Service as well as Hyperskill Terms of Service and Privacy Policy.

TrustPilot feedback

Coding thrill starts at Hyperskill

I've been using Hyperskill for five days now, and I absolutely love it compared to other platforms. The hands-on approach, where you learn by doing and solving problems, really accelerates the learning process.

Aryan Patil

Reviewed us onTrustpilot

Comments (0)
Hints (2)
Useful links (0)
Show discussion

LanguagesPython Java Kotlin & Android SQL and Databases Go & C++

Career pathsWeb Dev Backend DevOps Data Science & Analysis

SubjectsAI Coding Tools ✨ AI Engineering ML & Math

Resources

Blog University

Subscription

For Business Pricing

Hyperskill

About Careers For Content Creators

Support

Help Center Contact Support Terms