11. X- y = 1
y = 2
A) (-1,2)
B)(0,-1)
11)
C) (3,2)
D) (-3,2)

C) (3,2)

Step-by-step explanation:

3 is the X and since Y is 2... 3-2=1

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐