The black graph is the graph of y = f(x). Choose the equation for the
red graph.
A
a. y = f(x - 1)
b. y=f(x/-1)
c. y - 1 = f(x)
d. 3 = f(x)

< 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⭐