Let be a matrix

MATHEMATICS · Single correct · CBSE · Mathematics · Matrices · Matrices

Problem

Let PP be a 2×32\times 3 matrix, QQ a 3×23\times 2 matrix, RR a 2×32\times 3 matrix and SS a 3×33\times 3 matrix. For which of the following pairs is the operation P+QP+Q, P+RP+R, Q+SQ+S or R+SR+S defined? (a) R+SR+S (b) P+QP+Q (c) P+RP+R (d) Q+SQ+S

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