Solve for x: [[1, 2], [3, 4]] * [[x], [1]] = [[5], [11]].
Solve for x: [[1, 2], [3, 4]] * [[x], [1]] = [[5], [11]].
Approach: Perform matrix multiplication.
3. 1*x + 2*1 = 5 -> x=3.
Follow-up: Check if 3*3 + 4*1 = 11.
Key concepts: matrix equations.
Solve for x: [[1, 2], [3, 4]] * [[x], [1]] = [[5], [11]].
Approach: Perform matrix multiplication.
3. 1*x + 2*1 = 5 -> x=3.
Follow-up: Check if 3*3 + 4*1 = 11.
Key concepts: matrix equations.