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Circles & Conics
hard
0:00.0
What is the length of the major axis of
4
x
2
+
9
y
2
=
36
4x^2 + 9y^2 = 36
4
x
2
+
9
y
2
=
36
?
A
3
3
3
B
4
4
4
C
6
6
6
D
9
9
9
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