Matrices

NCERT Solution

Exercise 2 Part 4

Question 6: Simplify:

Question 7: Find X and Y, if:

Solution: Given,

After adding equation (i) and (ii) we get,

After substituting equation (i) from (ii) we get

Now, after adding equation (iii) and (iv) we get

After substituting the value of X in equation (iii) we get