Grade 10Analytical Geometry
the eccentricity of ellipse (x-3)^2 + (y-4)^2= y^2/9 is
a) (3)^1/2/2
b) 1/3
C) 1/3(2)^1/2
d) 1/(3)^1/2
the eccentricity of ellipse (x-3)^2 + (y-4)^2= y^2/9 is
a) (3)^1/2/2
b) 1/3
C) 1/3(2)^1/2
d) 1/(3)^1/2
1 Answer
Sharandeep singh
taking under root
{ (x-3)^2 + (y-4)^2 }^1/2 = (1/3)y
which is of the form
{ (x-a)^2 + (y-b)^2 }^1/2 = e( ax + by +c)/ ( a^2 +b^2 ) ^1/2
on comparing e=1/3
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