Test Index

ICSE Class X Math 2013 Solved Paper

© examsnet.com
Question : 1
Total: 46
SECTION - I

Given A=[
2−6
20
],B=[
−32
40
], C=[
40
02
] .
Find the matrix X such that A+2X=2B+ C.
Solution:  
Given A=[
2−6
20
],B=[
−32
40
], C=[
40
02
] .
∵‌‌A+2X=2B+C
Putting the given values, we get
[
2−6
20
]+2X‌=2[
−32
40
] +[
40
02
]
2X‌=[
−6+44+0
8+00+2
] −[
2−6
20
]
X‌=‌
1
2
[
−410
62
]
X‌=[
−25
31
]
© examsnet.com
Go to Question:
Next Question