We go over how to find the adjoint of matrices with a 3x3 example. The adjoint of a matrix is found by first constructing the matrix of cofactors and then we take the transpose of this cofactor matrix to obtain the adjoint. We also show how to find the inverse of a matrix using the adjoint. #linearalgebra Linear Algebra course: Linear Algebra exercises: Join Wrath of Math to get exclusive videos, music, and more: 0:00 Intro 0:11 Definition of Adjoint 0:25 Cofactors 1:25 Matrix of Cofactors 2:20 Adjoint Matrix 2:39 Using Adjoint for Inverse ◉Textbooks I Like◉ Graph Theory: Real Analysis: Abstract Algebra: Linear Algebra: Calculus: Proofs and Set Theory: (available for free online) Statistics: Discrete Math: Number Theory: ★DONATE★ ◆ Support Wrath of Math on Patreon for early access to new videos and other exclusive benefits: ◆ Donate on PayPal: Thanks to Loke Tan, Raül Beienheimer, Matt Venia, Micheline, Doug Walker, Odd Hultberg, Marc, Shlome Ashkenazi, Barbora Sharrock, Mohamad Nossier, Rolf Waefler, Shadow Master, and James Mead for their generous support on Patreon! Outro music is mine. You cannot find it anywhere, for now. Follow Wrath of Math on... ● Instagram: ● Facebook: ● Twitter: My Math Rap channel: how to find adjoint of matrices 3x3 example