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OpenStudy (anonymous):
What are the foci of the ellipse given by the equation (x-5)^2/81 +(y+1)^2/9=1 ??
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OpenStudy (anonymous):
deperate need of help
OpenStudy (anonymous):
find d eccentricity 1st
OpenStudy (anonymous):
standard form of an ellipse....x^2/a^2 + y^2/b^2=1
OpenStudy (anonymous):
b^2= a^2( 1- e^2)
OpenStudy (anonymous):
e= eccentricity
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OpenStudy (anonymous):
does it help u?
OpenStudy (anonymous):
bt the centre of d ellipse is not (0,0)...so there'll be some change in finding the focii
OpenStudy (anonymous):
can u find d eccentricity using above formula?
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