1.

Axes are co-ordinate axes, S and S^(1)are Foci, B and B^(1)are the ends of minor axis|SBS^(1) = sin ^(-1) ((4)/(5) ) .if area of SB S^(1) B^(1)is 20sq. Units then eq. of the ellipse is

Answer»

A) ` (X^(2) )/( 20 ) + ( y^(2))/( 16) =1`
B) ` (x^(2))/(25) +(y^(2))/( 16)=1`
C) ` (x^(2))/( 25) +(y^(2))/( 4))= 1 `
D) ` (x^(2))/( 25) +( y^(2))/( 20 ) =1 `

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