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Byju's Answer
Standard XII
Mathematics
Pair of Tangents from an External Point
The circle ...
Question
The circle
x
2
+
y
2
−
14
x
−
10
y
+
24
=
0
makes an
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Solution
X-intercept (y=0)
x
2
−
14
x
+
24
=
0
x
2
−
12
x
−
2
x
+
24
=
0
x
(
x
−
12
)
−
2
(
x
−
12
)
=
0
(
x
−
12
)
(
x
−
2
)
=
0
x
=
2
a
n
d
x
=
12
I
n
t
e
r
c
e
p
t
=
12
−
2
=
10
A
⟶
4
Y-intercept (x=0)
y
2
−
10
y
+
24
=
0
y
2
−
6
y
−
4
y
+
24
=
0
y
(
y
−
6
)
−
4
(
y
−
6
)
=
0
(
y
−
6
)
(
y
−
4
)
=
0
y
=
6
a
n
d
y
=
4
I
n
t
e
r
c
e
p
t
=
6
−
4
=
2
B
⟶
2
Intercept on Y-X
2
x
2
−
24
x
+
24
=
0
x
2
−
12
x
+
12
=
0
Difference of roots=
2
√
D
2
a
=
√
D
a
=
√
b
2
−
4
a
c
a
=
√
(
12
)
2
−
4
×
12
=
√
144
−
48
=
4
√
6
C
⟶
3
(d) Intercept on
7
x
−
y
−
4
=
0
Centre of circle (7,5)
Radius=
√
7
2
+
5
2
−
24
=
√
50
Distance of center from given line
7
(
7
)
+
5
−
4
√
7
2
+
5
2
=
√
50
=
r
a
d
i
u
s
Hence, intercept=0
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0
Similar questions
Q.
x
2
+
y
2
−
14
x
−
10
y
+
24
=
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,
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Q.
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and
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Q.
Find the shortest distance from the point
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−
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to the circle
x
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+
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Q.
The intercept made by the circle
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