English

Find x and y, if [43xx-2][51]=[y8]

Advertisements
Advertisements

Question

Find x and y, if `[(4, 3x),(x, -2)][(5), (1)] = [(y),(8)]`

Sum
Advertisements

Solution

`[(4, 3x),(x, -2)][(5), (1)] = [(y),(8)]`

`[(20 + 3x),(5x - 2)] = [(y), (8)]`

Comparing the corresponding elements, we get,

5x – 2 = 8 `=>` x = 2

20 + 3x = y `=>` y = 20 + 6 = 26

shaalaa.com
  Is there an error in this question or solution?
Chapter 9: Matrices - Exercise 9 (C) [Page 129]

APPEARS IN

Selina Concise Mathematics [English] Class 10 ICSE
Chapter 9 Matrices
Exercise 9 (C) | Q 4. (i) | Page 129
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×