PutnamSuperchallengeIntegrals I: Feynman's Trick ShareIntegrals I: Feynman's Trick · Superchallenge problemA 3×33\times33×3 real matrix AAA has eigenvalues 1,2,31, 2, 31,2,3. Compute det (A2+I)\det\!\left(A^2 + I\right)det(A2+I).Check Show answer Walk through it step by step Practice more like this Review this concept