Solve the Math Problems
1 12 Let A 2 1 3 - 1 3. Use the reduced row-echelon technique to find A-¹ and use 1 348 the matrix product A¹B to find the solution to the system: AX = B. x+y+2z=1 x+ y+2z=1 2x + y + 3z = 2 (a) 2x +