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# If are the eccentric angles of the extremities of a focal chord of the ellipse , then tan

## The correct answer is:

### The equation of the ellipse is of the form

the eccentricity e = =.

Let P(4 cos , 3 sin ) and Q (4 cos , 3 sin ) be a focal chord of the ellipse passing through the focus at (, 0).

Then =

=

=

tan tan = = .

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