Which expression is equivalent to 4√16x11 y8/81x7 y6? Assume x>0 and Y≠0 O 4x(4√y2)/9
O 2x(4√y2/3
O 4x²y/9
O 2x²y/3

How do i check if this is a long time ago or near by

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⭐