यदि बिंदु (1, 1) से अतिपरवलय 4x2 - 5y2 - 20 = 0 पर खींची गई स्पर्श रेखाओं के बीच का न्यून कोण θ है, तो tanθ =

The equation of the hyperbola referred to its axes of coordinates whose length of latus rectum is 4 and eccentricity is 3 is:

Let P(10, 2√15) be a point on the hyperbola x2a2 - y2b2 = 1, whose foci are S and S'. If the length of its latus rectum is 8, then the square of the area of ΔPSS' is equal to: