If-4a-2-5b-2-6a-1-0-and-the-line-ax-by-1-0-touches-a-fixed-circle-then-the-correct-statement-is-1-centre-of-circle-is-at-3-0-2-radius-of-circle-is-3-3-circle-passes-through-1-0-4-none

Question Number 32679 by rahul 19 last updated on 31/Mar/18

I f 4 a^{2} - 5 b^{2} + 6 a + 1 = 0 a n d t h e l i n e

a x + b y + 1 = 0 t o u c h e s a f i x e d c i r c l e

t h e n t h e c o r r e c t s t a t e m e n t i s :

1) c e n t r e o f c i r c l e i s a t (3, 0)

2) r a d i u s o f c i r c l e i s \sqrt{3} .

3) c i r c l e p a s s e s t h r o u g h (1, 0) .

4) n o n e o f t h e s e .