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Crash Course

Quick practice

Question 1 of 5

The eigen values of a  3 \times 3 matrix  \mathrm{P} are  2,2,-1 .  then  \mathrm{P}^{-1} is:

A

-\frac{1}{2}\left(P^{2}+3 P\right)

B

-\frac{1}{4}\left(P^{2}+2 P\right)

C

\frac{1}{2}\left(P^{2}-2 P\right)

D

\frac{1}{4}\left(3 P-P^{2}\right)

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