1.

Find the equation of the ellipse that satisfies the given conditions:Length of minor axis 16, foci `(0pm6)`.

Answer» Here, foci `-=(0,pm6)` are on y-axis.
`:.` Major axis is along y-axis.
Now be = 6
Given, minor axis 2b = 16
`rArr" "b=8" "rArr" "b^(2)=64`
and `a^(2)=b^(2)(1-e^(2))`
`rArr" "a^(2)=b^(2)-b^(2)e^(2)`
`rArr" "a^(2)=64-(6)^(2)=28`
Now, equation of ellipse
`(x^(2))/(a^(2))+(y^(2))/(b^(2))=1rArr(x^(2))/(28)+(y^(2))/(64)=1`


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