The orthocentre of the triangle whose vertices are (2, -1/2), (1/2,-1/2) , (2,root of 3-1/2) is
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Answer:
,
,,+
=+
=−+
+=(−)+(+)
=
2
1
∣
∣
∣
∣
∣
∣
−
+
−
∣
∣
∣
∣
∣
∣
=
2
1
[
2
+
2
−
2
−−
2
++−
2
−−
2
]
⇒18=
2
1
∣
2
+
2
∣
36=∣
2
+
2
∣
, ∣∣=
2
+
2
⇒
36
=
2
+
2
∴∣∣=6
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