Question
The eccentricity of the ellipse represented by the equation $4(x-2 y+1)^{2}+9(2 x+y+2)^{2}=25$ is(a) $\frac{5}{9}$(b) $\frac{\sqrt{5}}{3}$(c) $\frac{3}{2 \sqrt{5}}$(d) None of these
Step 1
We can rewrite this equation in standard form as $\frac{(x-2y+1)^2}{(25/4)} + \frac{(2x+y+2)^2}{(25/9)} = 1$. Show more…
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