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  • Please Solve RD Sharma Class 12 Chapter 4 Algebra of Matrices Exercise Very Short Asnwer Question 57 Maths Textbook Solution.

Please Solve RD Sharma Class 12 Chapter 4 Algebra of Matrices Exercise Very Short Asnwer Question 57 Maths Textbook Solution.

Answers (1)

Answer: x = 2 , y = -8 

Hint: Here we use basic concept of sum of matrix

Given: 2\begin{bmatrix} 3 &4 \\ 5 & x \end{bmatrix}+\begin{bmatrix} 1 &y \\ 0 & 1 \end{bmatrix}=\begin{bmatrix} 7 & 0\\ 10 &5 \end{bmatrix}

Solution:

Here both sides has 2×3matrix2\left [3 \: 4\: 5 \: x \right ]+\left [ 1\: y\: 0\: 1 \right ]=\left [ 7\: 0\: 10\: 5 \right ]\left [ 6\: 8\: 10\: 2x \right ]+\left [ 1\: y\: 0\: 1 \right ]

                                                                                    =\left [ 7\: 0\: 10\: 5 \right ] So,y+8=0y=-82x+1=52x=4x=2\: So,x-y

                                                                                     = -2-\left ( -8 \right )x-y=10

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