Question

The equation of any tangent to the circle x²+y²-2x+4y-4=0, is
(a) y=m(x-1)² + 3√(1+m²) - 2
(b) y=mx + 3√(1+m²)
(c) y=mx + 3√(1+m²) - 2
(d) none of these

Answer 1

$\huge\mathfrak\red{Answer :) }$

The equation of any tangent to the circle x²+y²-2x+4y-4=0, is none of these

Answer 2

d) none of the above .

iam not sure about it.