Simply 12 to the power of 16 over 12 to the power of 4

12^12

Step-by-step explanation:

If the exponent bases are the same you can subtract the exponents. Numerator minus denominator. (16-4=12)

< 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⭐

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation: