Question

If $A=\left[\begin{array}{ccc}\alpha &\beta \\\gamma &-\alpha \end{array}\right]$is such that A2 = I, then
A. 1+α²+βγ
B. 1-α²+βγ
C. 1-α²-βγ
D. 1+α²-βγ

Answer 1

Answer:

IF TEX A LEFT BEGIN ARRY CCC ALPHA AND BETA GAMMA AND END ARRY RIGHT TEX IS SUCH THAT A2=I,THEN

Step-by-step explanation:

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