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Byju's Answer
Standard XII
Mathematics
Tangent
The length of...
Question
The length of tangent from point
(
5
,
1
)
to the circle
x
2
+
y
2
+
6
x
−
4
y
−
3
=
0
is:
A
81
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B
29
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C
7
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D
21
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Solution
The correct option is
B
7
Given equation of circle
x
2
+
y
2
+
6
x
−
4
y
−
3
=
0
Length of tangent
=
√
S
1
=
√
5
2
+
1
2
+
30
−
4
−
3
=
√
49
=
7
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0
Similar questions
Q.
The length of the tangent from
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5
,
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)
to the circle
x
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+
y
2
+
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−
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=
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is:
Q.
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