How many and what type of solution(s) does the equation have?
2w^2+50=20w
a. 2 rational solutions
b. 1 rational solution
c. 2 non-real solutions
d. 2 irrational solutions

< 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⭐