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Find the orthocentre of the triangle the...

Find the orthocentre of the triangle the equations of whose sides are `x+y=1`, `2x+3y=6 `and `4x-y+4=0.`

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Let `AB,BC` and `CA` be `x+y=1,2x+3y=0` and
`4x−y+4=0`
Solving `A`
`y=1−x.`
from,
`=>4x−y+4=0`
`=>4x+4=y`
`=>4x+4=1−x`
`=>4x+x=1−4`
...
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