215 8_1. Which is the order of this matrix? 4 -1 3 36 -2 1 9A. 4 x 2C. 3 x 3E. 3 x 4В. 3 х 2D. 4 x 3_ 2. A matrix of order (m × n) is multiplied by a matrix of order (p x r). Thematrices are multiplicable when:A. n = pC. m = pD. n =rE. both matrices areB. m = rof the same order.3 -2]3. If A =, then –2A is:-46.А.-8 12-6-6С.844Е.-12-128-12-6В.-8 -12-48D.4- 4. When a matrix of order (m × n) is multiplied by a matrix of order (p xr) the order of the matrix obtained is:А. т xрВ. п хрС.п xrE. m x nD. m x r-–105. If A =3and B =[7 1then A + B equals:-123 103 2E.|5 24-17С.-12-3А.5- 2– 22[17 4В.5 223D.45- 2

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2 1 5 8 _1. Which is the order of this matrix? 4 -1 3 3 |6 -2 1 9 Е. З х 4 A. 4 x 2 В. 3 х 2 C. 3 x 3 D. 4 x 3 _ 2. A matrix of order (m × n) is multiplied by a matrix of order (p x r). The matrices are multiplicable when: A.n = p B. m =r C. m = p D. n =r E. both matrices are of the same order. 3 -2] 3. If A = then -2A is: 6. -4 -6 С. -6 4 А. -8 4 Е. –12 8 -12 -12] 12 -6 -4 8 D. -6 -8 -12 4 8. B.