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Byju's Answer
Standard VI
Mathematics
Collinear Points
Prove that th...
Question
Prove that the points
(
−
a
,
−
b
)
,
(
0
,
0
)
,
(
a
,
b
)
and
(
a
2
,
a
b
)
are collinear.
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Solution
As per slope formula:
m
=
y
2
−
y
1
x
2
−
x
1
As per given points
Slope of AB =
0
−
(
−
b
)
0
−
(
−
a
)
=
b
a
Slope of CD =
b
(
a
−
1
)
a
(
a
−
1
)
=
b
a
Slope AB and slpoe of CD
=
b
a
∴
points A,B,C & D are colinear.
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