Skip to content

Library Solve Practice

Search 7,000+ topics/

Color theme

Library Solve Practice

Search everything About Expii Contributors

Library
Math
Algebra 2
Matrices, in Depth
Determinants and Matrix Inverses
Matrix Determinants
Computing Determinants of 2×2 or 3×3 Matrices

Practice problem

Computing Determinants of 2×2 or 3×3 Matrices

By

Alex Federspiel

What is the determinant of $\begin{bmatrix}2a&b&c\\a&2b&c\\a&b&2c\end{bmatrix}$ ?

Choose one answer

Option A: A

$2ac$

Option B: B

$abc$

Option C: C

$4abc$

Option D: D

$0$

Report a problem

What needs fixing?

Read explanations Rated practice

For a more Thought Full world.

Learn

Library
Search
Solve
Practice

Expii

About Expii
Contributors
Blog archive
Contact
Conduct

Family

LIVE
Po-Shen Loh

Free explanations from a community of curious people.© 2026 Expii, Inc.Terms Privacy

Find a topic

Type a concept, like “slope” or “photosynthesis”.

↑ ↓ to choose · Enter to openSearch explanations and problems