Given A=\left[\begin{array}{cc}x & 3 \ y & 3]\end{array} If A^2=3 I, where I is the identity matrix of order 2. find x and y.

ICSE Class X Math 2020 Solved Paper - Question 2

Question : 2 of 29

Marks: +1, -0

Given

A={[\table x , 3 ; y , 3]}

A^2=3 I

, where

I

is the identity matrix of order 2. find

x

and

y

Solution:

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