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Byju's Answer
Standard XII
Mathematics
Applications of Cross Product
The point 1...
Question
The point
(
1
,
1
)
lies ____________ the ellipse
x
2
4
+
y
2
9
=
1
A
outside
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B
inside
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C
on the periphery
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D
on the auxillary circle
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Solution
The correct option is
B
inside
We will substitute the given point in ellipse equation
⇒
x
2
4
+
y
2
9
−
1
=
1
4
+
1
9
−
1
⇒
13
36
−
1
⇒
−
23
36
<
0
By Substituting the point, we are getting less than
0
∴
point lies inside the ellipse .
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