JEE Main 2012 Mathematics question
If two vertices of a triangle are (5, −1) and (−2, 3) and its orthocentre is at (0, 0), then the third vertex is
Answer: (2)
Solution
Let A(5, −1), B(−2, 3), C(x, y), H(0, 0). AH ⊥ BC: $5(x + 2) - (y - 3) =
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