Question

If A= {3,9, 27,81} then write it in
builder form.
the set​

Answer 1

A = {x:x is a multiple of 3}

Answer 2

Step-by-step explanation:

A=(3¹,3²,3³,3⁴)

$A= {(x:x =3^n and \: 1 \leqslant n \leqslant 4)}$

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