If the eccentricity of the hyperbola x2−y2sec2θ=5 is 3 times the eccentricity of the
ellipse x2sec2θ+y2=25, and smallest positive value of θ is πP then twice the value of 'p'is
Eccentricity of the hyperbola x2−y2sec2θ=5 is
equation is x25-y25sec2θ=1
e1=1+sec2θsec2θ=1+cos2θ Eccentricity of the ellipse x2sec2θ+y2=25 is x225sec2θ+y225=1e2=sec2θ−1sec2θ=|sinθ| Given e1=3e2⇒1+cos2θ=3sin2θ⇒cosθ=±12∴ Least positive value of θ is π4∴P=4⇒2P=8