Given three matrices 1 A (3) 05 02 c-(; 3) C = 1 1 1 D -(0) Determine the matrix B such that (A + B) · C = D. Explain your working. || 7

Find the matrix of the quadratic form. Assume x is in R³. a. 2x² + 3x²2 - 9x²3 - 10x₁x×2 + 18x₁×3 − 12×2×3 b. 2x1x2 + 12x₁X3 - 18x2x3 a. The matrix of the quadratic form 2x² + 3x2 -9x3 - 10x₁x2 + 18x₁ x3 - 12x₂x3 is (Simplify your answer.) Part 1 of 2

Find the matrix of the quadratic form 2x1? + 3x2² – x32 + 4x1x2 – 2 x1x3 + 6x2x3 2 2 -2 1 (a) 2 3 (b) -2 3 3 -1 3 -1 1 3 -1 2 -2 -1] [2 2 1 (d) 2 l1 -2 3 3 3 -3 [-1 3 -1. -3 -1.

How do you find the inverse matrix