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Mathematics
Mathematics
Problem
If the midpoint of a chord of the ellipse
x
2
9
+
y
2
4
=
1
\frac{x^2}{9} + \frac{y^2}{4} = 1
9
x
2
+
4
y
2
=
1
is
(
2
,
4
/
3
)
(\sqrt{2}, 4/3)
(
2
,
4/3
)
, and the length of the chord is
2
α
3
\frac{2\sqrt{\alpha}}{3}
3
2
α
, then
α
\alpha
α
is :
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