which is not the solution of x-y=0. a (1,1) b (-1,1) c(1,-1) d(1,0)
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Given : X - Y = 0
To Find : which point is not the solution
a (1,1) b (-1,1) c(1,-1) d(1,0)
Solution:
x - y = 0
=> x = y
Any solution where x ≠ y is not a solution of x - y = 0
Hence b (-1,1) c(1,-1) d(1,0) are not solution of x - y = 0
Verification :
b (-1,1)
-1 - 1 = - 2 ≠ 0
c (1,-1)
1 - (-1 ) = 2 ≠ 0
d (1,0)
1 -0 = 1 ≠ 0
a (1,1) is the solution
as 1 - 1 = 0 = 0
(-1,1) , (1,-1) , (1,0) are not solution of x - y = 0
(1,1) is the solution
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