Question 787283
Write an equation of the ellipse with the given characteristics and center
at (0, 0).
Vertex: (0,4)
Focus: (0,2 sqrt 3) <-- like 2 then square root of 3 
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Given ellipse has a vertical major axis:
Its standard form:{{{(x-h)^2/a^2+(y-k)^2/b^2=1}}}
center:(0,0)
a=4
a^2=16
c=2&#8730;3
c^2=4*3=12
c^2=a^2-b^2
b^2=a^2-c^2=16-12=4
equation:{{{x^2/16+y^2/4=1}}}