Tardigrade
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Tardigrade
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Mathematics
The length of the shortest path that begins at the point (-1,1), touches the x-axis and then ends at a point on the parabola (x-y)2=2(x+y-4), is.....
Q. The length of the shortest path that begins at the point
(
−
1
,
1
)
, touches the
x
-axis and then ends at a point on the parabola
(
x
−
y
)
2
=
2
(
x
+
y
−
4
)
, is.....
577
142
JEE Advanced
JEE Advanced 2018
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Answer:
4.25
Solution:
Required Length is OP+ OV where P(-1,1) , V(2,2) is vertex and 0 is origin