English

Find X, Y Satisfying the Matrix Equations `[X Y + 2 Z-3 ] + [ Y 4 5]=[4 9 12]`

Advertisements
Advertisements

Question

Find xy satisfying the matrix equations

`[x     y + 2    z-3 ] +  [  y       4          5]=[4        9        12]`

Sum
Advertisements

Solution

 [x    y+2    z−3] + [y    4      5]=[4     9       12]

⇒[x+y      y+2+4        z−3+5]=[4       9      12]

⇒[x+y          y+6      z+2]=[4     9     12]

∴ x+y=4                   ...(1)

Also,

 y+6=9

⇒y=3

z+2=12

⇒z=10

Putting the value of y in eq. (1), we get

x+3=4  

⇒x=4−3

⇒ x=1 

∴ x=1, y=3 and z=10 

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Algebra of Matrices - Exercise 5.2 [Page 18]

APPEARS IN

R.D. Sharma Mathematics Volume 1 and 2 [English] Class 12
Chapter 4 Algebra of Matrices
Exercise 5.2 | Q 15.2 | Page 18
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×