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Question: Answered & Verified by Expert
A square is formed by the lines \(x=0, y=0\), \(x=1, y=1\). Then, the equations of its diagonals will be
MathematicsStraight LinesAP EAMCETAP EAMCET 2020 (17 Sep Shift 1)
Options:
  • A \(y=x, x+y=2\)
  • B \(2 y=x, x+y=\frac{1}{2}\)
  • C \(y=x, x+y=1\)
  • D \(y=2 x, x+y=\frac{1}{4}\)
Solution:
1798 Upvotes Verified Answer
The correct answer is: \(y=x, x+y=1\)
Equation of \(O B\)


\(\begin{aligned}
\quad y & =\left(\frac{1-0}{1-0}\right) x \\
\Rightarrow \quad(y & =x)
\end{aligned}\)
Equation of \(A C\)
\(\Rightarrow \quad \begin{aligned}
y-0 & =-1(x-1) \\
\Rightarrow \quad y & =-x+1 \Rightarrow x+y=1
\end{aligned}\)

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