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Questions  

 The equations of the diagonals of square formed by lines x =0 , y = 0, x = 1  and y = 1 are 

a
y=x,y+x=1
b
y=x,x+y=2
c
2y=x,y+x=1/3
d
y=2x,y+2x=1

detailed solution

Correct option is A

The coordinates of the vertices of the square are A(0, 0), B(0, 1), C(1, 1), and D(1, 0). Now, the equation of AC is y = x and that of BD isy−1=−11(x−0) or  x+y=1

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