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To find: the eccentricity and standard-form equation.
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Answer to Problem 21E
Eccentricity is
The hyperbola’s standard-form equation is
Explanation of Solution
Given:
Focus
Directrix
Calculation:
We are given the focus of hyperbola as
The other parameters of the hyperbola can be calculated as:
Also, eccentricity is
Now,
Conclusion:
Therefore,the hyperbola’s standard-form equation is
Eccentricity is
Chapter A5 Solutions
Calculus 2012 Student Edition (by Finney/Demana/Waits/Kennedy)
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