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'=alpha and /_PS'S=beta` ,then

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^(2))/25=1 whose foci are S and S', then PS+PS'=8.

If P is any point on the ellipse 9x^(2) + 36y^(2) = 324 whose foci are S and S'. Then, SP + S' P equals

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 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 (theta) is a point on the ellipse E (a gt b) , whose foci are S and S', then SP.S'P =

If P is any point on the ellipse (x^(2))/(25) + (y^(2))/(9) = 1 whose foci are S and S' perimeter of Delta SPS' is

If P(theta) is a point on the hyperbola (x^(2))/(a^(2)) - (y^(2))/(b^(2)) = 1 , whose foci are S and S', then SP.S'P =