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Mathematics

If A = [12] and B=[1203]\begin{bmatrix}[r] -1 & 2 \end{bmatrix} \text{ and } B = \begin{bmatrix}[r] 1 & -2 \ 0 & 3 \end{bmatrix}. Which of the following operations is possible ?

  1. A - B

  2. A + B

  3. AB

  4. BA

Matrices

ICSE Sp 2024

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Answer

Order of A : 1 × 2 and order of B : 2 × 2

Since, no. of columns in A is same as the no. of rows in B.

∴ AB is possible.

Hence, Option 3 is the correct option.

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