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`        a matrix X has (a+b) rows and (a+2) columns, while the matrix Yhas (b+1)rows and (a+3)columns both XY and YX exist. find a and b `
one year ago

## Answers : (1)

Arun
24497 Points
```							if XY exist , then number of columns in X = number of rows in Ythereforea+2=b+1a - b = -1 .......(1)if YX exist , then number of columns in Y = number of rows in Xa+3 = a+btherefore b = 3from eq(1):a - 3 = -1a = 2the number of rows in X = 2+3 = 5the number of columns in X = 2+2 = 4the number of rows in Y = 3+1 = 4 the number of columns in Y = 2+3 =5thus order of XY is 5*4 and order of YX is 4*5thus both are of different type.
```
one year ago
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### Course Features

• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions