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QJEEM20Maae28: JEE Main 2020 Mathematics - Class 11 JEEM20Maae28 Solution: If a ABC has vertices A(–1, 7), B(–7, 1) and C(5, –5), then its …
If a ABC has vertices A(–1, 7), B(–7, 1) and C(5, –5), then its orthocentre has coordinates :
Multiple Choice Options
- A (–3, 3)
- B (3, –3)
- C
- D
Step-by-Step Verified Solution
equation of CD
y + 5 = -1 (x - 5)
x + y = 0 .....(1)
equation of AE
y - 7 = 2 (x + 1)
2x - y = -9 ......(2)
from (1) & (2)
x = -3, y = 3
Othocentre = (-3, 3)