If a, b, c are measurement of sides of ΔABC and \(\left|\begin{array}{lll} a & b & c \\ b & c & a \\ c & a & b \end{array}\right|\) = 0 then sin2 A + sin2 B + sin2 C =_______.
1
\(\frac{13}{4}\)
2
\(\frac{9}{4}\)
3
\(\frac{15}{4}\)
4
\(\frac{11}{4}\)