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AP EAMCET202017 Sep 2020Morning ShiftMathematicsStraight LinesActual

A square is formed by the lines (x=0, y=0 ), (x=1, y=1 ). Then, the equations of its diagonals will be

Options

  1. A(y=x, x+y=2 )
  2. B(2 y=x, x+y= 1 2 )
  3. C(y=x, x+y=1 )
  4. D(y=2 x, x+y= 1 4 )

Correct answer

C. (y=x, x+y=1 )

Step-by-step solution

Equation of (O B ) ( aligned y & = ( 1-0 1-0 ) x (y & =x) aligned ) Equation of (A C ) ( aligned y-0 & =-1(x-1) y & =-x+1 x+y=1 aligned )

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