Circle
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If the tangents x + y + k = 0 and x + a y + b = 0 drawn to the circle S ≡ x 2 + y 2 + 2 x − 2 y + 1 = 0 are perpendicular to each other and k , b are both greater than 1 , then b − k =
[TG EAPCET 10 May 2024 Shift 1]
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