Чx" Чx - 6
How do I do this ?

should be 16X^2-6

Step-by-step explanation:

4x times 4x is 16x^2

btw you never really stated which function to solve with so this is the most optimal answer

< 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⭐