What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x – 2? a = , b = 3, c = 2 a = , b = –3, c = –2 a = , b = 3, c = –2 a = , b = –3, c = 2

step-by-step explanation:

< 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⭐