Let a, b, c R be all non-zero and satisfy
a³ + b³ + c³ = 2. If the matrix
A = \left( {\matrix{
a & b & c \cr
b & c & a \cr
c & a & b \cr
} } \right)
satisfies A^TA = I, then a value of abc can be :
JEE Main 2020 · 2 Sep, Evening shift · Q4662