find the eccentricity of an ellipse whose major axis is twice as long as its minor axis

Analytic geometry
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1 Answer

esentrisity=sqroot(a^2 +b^2)/a . . . =root[a^2+(a/2)^2]/a . . . =root(0.75a^2)/a . . . =root(0.75)*a/a . . . =root(0.75) . . . =0.866025403
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