Iven the sets m = {3, 4, 5, 6, 7} and n = {4, 6, 8, 10, 12}, the set m∩n is identified by which notation below? {2, 3, 4, 5, 6, 8, 10, 12} {2, 4, 4, 5, 6, 6, 7, 8, 10} ø {4, 6}

< 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⭐