Answer and Step-by-step explanation:
Let bold r 1 comma ... Comma bold r subscript p be vectors in the set of real numbers r superscript n:
r1,… ,rp be vector in Rn
And let Q be an m times n matrix = Q= m x n
write the matrix left bracket upper q bold r 1 ...Q bold r subscript p right bracket as a product of two matrices = [Qr1, …, QrP], which is a product of two matrices.
To write the product of two matrices.
Use the definition of AB in reverse order:
[Qr1, …, QrP] = Q [r1, …, rp]
= QR