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Byju's Answer
Standard X
Mathematics
Section Formula
If the line j...
Question
If the line joining points
(
5
,
−
6
)
and
(
9
,
8
)
divided by a point R internally in
5
:
6
ratio, then R =
A
(
5
11
,
4
11
)
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B
(
75
11
,
76
11
)
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C
(
75
11
,
4
11
)
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D
None of these
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Solution
The correct option is
C
(
75
11
,
4
11
)
The given points are
A
=
(
x
1
,
y
1
)
=
(
5
,
−
6
)
,
B
=
(
x
2
,
y
2
)
=
(
9
,
8
)
Now,
R
=
(
X
,
Y
)
divides the line segment AB internally in the ratio
m
:
n
=
5
:
6
.
We know
X
=
m
x
2
+
n
x
1
m
+
n
and
Y
=
m
y
2
+
n
y
1
m
+
n
∴
X
=
5
×
9
+
6
×
5
5
+
6
=
7
5
11
and
Y
=
5
×
8
+
6
×
(
−
6
)
5
+
6
=
4
11
Therefore, given point
R
is
(
75
11
,
4
11
)
.
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0
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Q.
The point (11, 10) divides the line segment joining the points (5, -2) and (9, 6) in the ratio
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Equation of the line perpendicular to the line
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and which dIvides the line segment joining the points
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Q.
a) In what ratio, the line segment joining (-3, -1) and (-8, -9) is divided at the point (-5, 3)?
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[6 MARKS]
Q.
If
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P
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=
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, then the value of
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