question_answer 1)

Which of the given values of x and y make the following pair of matrices equal       (a)         (b)  not possible to find             (c)  y = 7, x =       (d)  

Answer:

For equal matrices,       3x + 7 = 0  ?. (1) ;  5 = y ?2  ?. (2)       y + 1 = 8  ?. (3) ;  2 = 3x = 4  ?. (4)       From (1) and (4), we get       3x = ? 7 and ?3x = 2       i.e.  which is not possible.        is the correct answer.