Please Solve RD Sharma Class 12 Chapter Algebra of Matrices Exercise 4.1 Question 9 Maths Textbook Solution.
Answer: and
Given:
We have to find the value of and
Hint: If two matrices are equal then the elements of each matrix are also equal.
Solution: Given that two matrices are equal
By equating them, we get
……. (i)
……. (ii)
……(iii)
……. (iv)
Multiplying eqn(ii) by 2 and subtracting from 2 we get
Now, substituting the value of in equation (i) we get
Again, multiplying eqn(iii) by 4 and adding 4 we get
Substituting the value of in equation (iii)
Hence and