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The image of the curve xy=1 in the line X=-1 is 
(a) (x+1)y=1         (b) (x+2)y=1
(c) (X+1)y=-1.        (d) (x + 2)y+1=0
 
6 months ago

Answers : (1)

Arun
21040 Points
							
Dear student
 
this required no extra mind. as
 
x = -1 then y = -1 in xy = 1
 
now if we take image about x = -1 then this point should remain same.
 
now 
 
only option D satisfy (-1, -1)
 
hence it is the correct amswer
6 months ago
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