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If α and β ar...

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If α and β are the eccentric angles of the extremities of a focal chord of an ellipse, then the eccentricity of the ellipse is

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α

β

are the eccentric angles of the extremities of a focal chord of an ellipse, then the eccentricity of the ellipse is:

α, β

are the eccentric angles of the extremities of a focal chord of an ellipse, then eccentricity of the ellipse is

α

β

are the eccentric angles of the extremities of a focal chord of an ellipse of eccentricity e then

cos (\frac{α - β}{2}) =

α

β

are the eccentric angles of the extremities of a focal chord of the ellipse

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1

\frac{{cos}^{2} (\frac{α - β}{2})}{{cos}^{2} (\frac{α + β}{2})} =

Q. The eccentric angles of extremities of a focal chord (other than Major axis) of an ellipse

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1

θ_{1}

θ_{2}

.
If the eccentricity of the ellipse are

e_{1}

e_{2}

for the conditions

a > b

b > a

respectively, then

{cos}^{2} (\frac{θ_{1} - θ_{2}}{2}) (\frac{1}{e_{1}^{2}} + \frac{1}{e_{2}^{2}})

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Pole of a mirror

Standard X Physics