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Grade: 12th pass
        
Consider the triangle OAB where O=(0,0),B=(3,4).If orthocentre of the triangle is H(1,4),the coordinate of A is?
 
28 days ago

Answers : (1)

Saurabh Koranglekar
askIITians Faculty
2674 Points
							Dear student

Product of slopes of perpendicular lines =-1

Let A be (x,y)
Slope AH *slope OB = -1

3x+4y= 19

Slope AB*slope OH = -1

x+4y= 19

Solving 2 eqn

x=0
y = 19/4

Regards
27 days ago
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