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If the equations of the sides of a trian...

If the equations of the sides of a triangle are ` a_(r)x+b_(r)y = 1 , r = 1 ,2,3 ` and the orthocentre is the origin then prove that
`a_1a_2 +b_1b_2= a_2a_3+ b_2b_3 =a_3a_1+b_3b_1`

Answer

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Knowledge Check

  • The area of triangle, having vertices A(1, 1, 1), B(1,2,3)andC(2,3, 1) is:

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    B
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    C
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