Question

calcule

a- 3^-1 +2/3

b-3^1 . 9

c- 7^-2 . 49

d- 6^-2 + 35/36

Answer 1

$a) \\ \\ 3^-^1 + \dfrac{2}{3} \\ \\ \\ \dfrac{1}{3} +\dfrac{2}{3} \\ \\ \\ \dfrac{1+2}{3} \\ \\ \\ \dfrac{3}{3} => \ 1$

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$b) \\ \\ 3^1 * 9 \\ \\ \\ 3 * 9 => \ 27$

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$c) \\ \\ 7^-^2 * 49 \\ \\ \\ (\dfrac{1}{7})^2 * 49 \\ \\ \dfrac{1}{49} * 49 \\ \\ \\ \dfrac{49}{49} => 1$

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$d) \\ \\ 6^-^2 + \dfrac{35}{36} \\ \\ \\ (\dfrac{1}{6})^ 2 + \dfrac{35}{36} \\ \\ \\ \dfrac{1}{36} + \dfrac{35}{36} \\ \\ \\ \dfrac{1 + 35}{36} \\ \\ \\ \dfrac{36}{36} => 1$

Answer 2

Resposta:eu so tenho 9 anos faz perguntas mas fasio

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