Among the statements:
(S1): If \( A(5,-1) \) and \( B(-2,3) \) are two vertices of a triangle, whose orthocentre is \( (0,0) \), then its third vertex is \( (-4,-7) \)
and
(S2): If positive numbers \( 2a,b,c \) are three consecutive terms of an A.P., then the lines \( ax+by+c=0 \) are concurrent at \( (2,-2) \),
