Locus of reflection of the foci of the ellipse x2/16+y2/12=1 in its tangents are the curves C1 and C2 .Curve C1 and C2 meet at P and Q.Let the line passing through P and Q be L.Hyperbola H is drawn with P and Q as its foci and having perpendicular asymmptotes and Hc is conjugate hyperbola of H.
1)Equation of C1 and C2 is _________
2)Equation of Hc is ___________
3)If straight line y=mx+c(neither passing through origin nor vertical is a tangent of H,then m lies in the interval________
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