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Muliply two matrices

Two matrices $A$ and $B$ are given as follows:

A = [-0.9 0.5 -0.6; 0.6 -0.9 0.3; -1.0 -0.9 -0.3; 0.2 -0.2 0.0; -0.7 0.7 0.7];
B = [0.1; 0.6; 0.7];

import numpy as np

A = np.array([[-0.9, 0.5, -0.6], [0.6, -0.9, 0.3], [-1.0, -0.9, -0.3], [0.2, -0.2, 0.0], [-0.7, 0.7, 0.7]])
B = np.array([[0.1], [0.6], [0.7]])

from sympy import *

A = Matrix([[-0.9, 0.5, -0.6], [0.6, -0.9, 0.3], [-1.0, -0.9, -0.3], [0.2, -0.2, 0.0], [-0.7, 0.7, 0.7]])
B = Matrix([[0.1], [0.6], [0.7]])

Find the product of these two matrices:

$AB=$

Note: this is an example of a question generator with randomized parameters, which is used to generate a fixed question variant for an exam. Students receive instant feedback and have retry attempts for partial credit.

$AB=$ [-0.210; -0.270; -0.850; -0.100; 0.840]

$AB=$ [[-0.210], [-0.270], [-0.850], [-0.100], [0.840]]

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QID:

demo/annotated/mathMatrixMult

Title:

Muliply two matrices

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Started at:

2026-09-19 08:05:23 (CDT)

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{
  "C": {
    "_type": "ndarray",
    "_dtype": "float64",
    "_value": [
      [
        -0.20999999999999996
      ],
      [
        -0.2700000000000001
      ],
      [
        -0.85
      ],
      [
        -0.09999999999999999
      ],
      [
        0.84
      ]
    ]
  }
}

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