The matrix A^2 + 4A – 5I, where I is identity matrix and A = [\table 1,2;4,-3] , equals :

BITSAT 2011 Paper

Section: Mathematics

Question : 108 of 150

Marks: +1, -0

The matrix A2 + 4A – 5I, where I is identity matrix and A = [

1	2
4	−3

] , equals :

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9+4−5	−4+8−0
−8+16−0	17−12−5

0	−1
2	2

9	−4
−8	17

4	8
16	−12