Question

3
3
а a
a ta
$a^{3} - a ^{2} + a$
​

Answer 1

Answer:

3A=[(-1,-2,-2),(2,1,-2),(x,-2,y)] such that A A^T=I, then which of the following are correct? (A) x+2y=4 (B) x-y=1 (C) x^2+y^2=-3 (D) x^2+y^2=5.