The value of n. 3n = (3^2)8

Step-by-step explanation:

3n = 3² × 8                     3² = 3 × 3

n × 3 = 3 × 3 × 8            notice a times 3 on both sides of the equation

                                      divide both sides by 3

n =  3 × 8      

n = 24    < FINAL 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

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step-by-step explanation:

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