Question

se A = (9-¹×3-³)-¹×[-⅓]⁴, o valor de A é:

Answer 1

$( 9^{-1}* 3^{-3})^-^1*[- \frac{1}{3}]^4=$

$[( \frac{1}{9})^1* (\frac{1}{3})^3]^-^1* \frac{1^4}{3^4}=$

$(\frac{1}{9}* \frac{1}{27})^-^1* \frac{1}{81}=$

$(9*27)^1* \frac{1}{81}=$

$243* \frac{1}{81}= \frac{243}{81}=3$

            A = 3