Question

The pole of the line x-y-1=0 with respect to the curve xº+y2-1=0 is :
वक्र x+y2-1=0 के सापेक्ष रेखा x-y-1=0 का ध्रुव है :
(1)
(1,-1)
(2) (1,1)
(4) (-1,-1)
(3) (-1,1)
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Answer 1

which class and which board