EllipseMedium
Question
If S and T are foci of the ellipse 
= 1 and B is an end of the minor axis. If STB is an equilateral triangle the eccentricity of ellipse is-
= 1 and B is an end of the minor axis. If STB is an equilateral triangle the eccentricity of ellipse is-Options
A.
B.
C.
D.
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