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Please Solve RD Sharma Class 12 Chapter 4 Algebra of Matrices Exercise Very Short Asnwer Question 16 Maths Textbook Solution.

Answers (1)

Answer: x=-2

Hint: To solve this, we must follow the basic rules of matrix multiplication

Example: One’s number of column is equal to second’s number of rows

Given: \begin{bmatrix} x &2 \end{bmatrix}\begin{bmatrix} 3\\4 \end{bmatrix}=2

Solution:

\begin{bmatrix} x &2 \end{bmatrix}\begin{bmatrix} 3\\4 \end{bmatrix}=2

3x+8=2

3x=-6

x=-2

Here, multiplication rules are followed

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