Assignment:
For the A-matrix:
5x1 + 9x2 + 2x3 = 24
9x1 + 4x2 + x3 = 25
2x1 + x2 + x3 = 11
Construct an orthonormal basis with a1 and then a2 and then a3. Next, expand the given vector b in terms of those vectors.
Provide complete and step by step solution for the question and show calculations and use formulas.