Answer :
Matrices P and Y are of the orders p × k and 3 × k respectively.
Therefore, matrix PY will be defined if k = 3.
Then, PY will be of the order p × k.
Matrices W and Y are of the orders n × 3 and 3 × k respectively.
As, the number of columns in W is equal to the number of rows in Y, Matrix WY is well defined and is of the order n × k.
Matrices PY and WY can be added only when their orders are the same.
Therefore, PY is of the order p × k and WY is of the order n × k.
Thus, we must have p = n.
Therefore, k = 3 and p = n are the restrictions on n, k and p so that
PY + WY will be defined.
Rate this question :


If <span lang="EN
Mathematics - ExemplarSolve for x and y
Mathematics - Exemplar<span lang="EN-US
Mathematics - ExemplarIf AB = BA for an
Mathematics - ExemplarIf <img wid
Mathematics - ExemplarTotal number of p
Mathematics - ExemplarThe matrix <span
Mathematics - ExemplarShow by an exampl
Mathematics - ExemplarIf <img wid
Mathematics - ExemplarIf matrix <span l
Mathematics - Exemplar