The sum of the polynomials 6x3 8x2 – 2x 4 and 10x3 x2 11x 9 is

x intercept = (-1,0)   (4,0)

< 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⭐

the answer is d on edge

step-by-step explanation: