# Matrix or Football?

**Algebra**Level 4

\[Re(h_{jk})=A\] A= number of matches in which both jth and kth players played or both did not play.

If j=k,A=3

\[Img(h_{jk})=B\]

B = (number of matcher played by kth player) - (number of matches played by jth player)

Let\[P=[P_{jk}]\] \[P_{jk}=C\] C=1 if jth player played in kth match and C=i otherwise \[i=(-1)^{0.5}\]

\[det(H)=D\] \[\left| D\right|=E\]

Only in the answer two parallel lines represent det and not absolute value.