Suppose that the foci of the ellipse x29+y25=1 are (f1,0) and (f2, o) where f1>0 and f2<0 . Let P1 and P2 be two parabolas with a common vertex at (0,0) with foci at (f1,0) and (2f2,0) respectively .Let T1 be a tangent to P1 which passes through (2 f2,o) and T2 be a tangent to P2. P2 which passes through (f1,0) . If m1 is the slop of T1 and m2 is the slope of T2, then the value of (1m21+m22) is