If A=\left[\begin{array}{cc}1 & 3 \ 2 & 4]\end{array}, B=\left[\begin{array}{cc}1 & 2 \ 2 & 4]\end{array}, C=\left[\begin{array}{cc}4 & 1 \ 1 & 5]\end{array} and I =\left[\begin{array}{cc}1 & 0 \ 0 & 1]\end{array}. Find A(B+C)-14 I

ICSE Class X Math 2023 Solved Paper - Question 22

SECTION B

(40 Marks)
Attempt any four questions from this Section.
Question 4.

Question : 22 of 41

Marks: +1, -0

A={[\table 1 , 3 ; 2 , 4]}, B={[\table 1 , 2 ; 2 , 4]}, C={[\table 4 , 1 ; 1 , 5]}

and I

={[\table 1 , 0 ; 0 , 1]}

.
Find

A(B+C)-14 I

Solution:

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