If `P` is any point on ellipse with foci `S_1 & S_2` and eccentricity is `1/2` such that `/_PS_1S_2=alpha,/_PS_2S_1=beta,/_S_1PS_2=gamma` , then `cot(alpha/2), cot(gamma/2), cot(beta/2)` are in

If P is any point on ellipse with foci S_(1)&S_(2) and eccentricity is (1)/(2) such that /_PS_(1)S_(2)=alpha,/_PS_(2)S_(1)=beta,/_S_(1)PS_(2)=gamma then cot((alpha)/(2)),cot((gamma)/(2)),cot((beta)/(2)) are in

If P is any point lying on the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1, whose foci are S and S'* Let /_PSS^(2)=alpha and /_PS'S=beta then

If P is a point on the ellipse (x^(2))/(16)+y'(20)=1, whose foci are S and S' Then PS+PS' is equal to

If P is any point on the ellipse x^(2)/36 +y^(2)/16=1 and S and S', are the foci, then PS+PS'equal to

P is a variable point on the ellipse with foci S_(1) and S_(2). If A is the area of the triangle PS_(1)S_(2), the maximum value of A is

If P is a point on the ellipse (x^(2))/16+(y^(2))/25=1 whose foci are S and S', then PS+PS'=8.

If P is a point on the ellipse (X^(2))/(9) + (y^(2))/(4) =1 whose foci are S and S' then the value of PS + PS' is

P is any point lying on the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1(agtb) whose foci are S and S' . If anglePSS'=a and anglePS'S=beta , then the value of tan.(alpha)/(2)tan.(beta)/(2) is

If tan beta=2sin alpha sin gamma co sec(alpha+gamma) , then cot alpha,cot beta,cotgamma are in