pliss jawab ya...jgn asal²lan.... Question from @ridhovalen27

September 2022 2 12 Report

pliss jawab ya...jgn asal²lan

Penjelasan dengan langkah-langkah:

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Menyatakan pangkat positif berupa bilangan real

$\boxed{a^{-n} = \frac{1}{a^n}}$

Menyatakan pangkat positif berupa pecahan

$\boxed{ \left(\frac{a}{b} \right)^{-n} = \left(\frac{b}{a} \right)^n}$

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$\tt\left(3x^{-4} y^2\right)^{-2}$

$= \tt \left(3 \times \dfrac{1}{x^4} \times y^2\right)^{-2}$

$= \tt \left(\dfrac{3 \times 1 \times y^2}{x^4}\right)^{-2}$

$= \tt \left(\dfrac{3 y^2}{x^4}\right)^{-2}$

$= \tt \left(\dfrac{x^4}{3y^2}\right)^2$

$= \tt \dfrac{x^{4.2}}{3^2 \times y^{2.2}}$

$= \tt \dfrac{x^8}{9y^4}$

2 votes Thanks 1

Penjelasan dengan langkah-langkah:

(3x-⁴ y²)-²

(3 . 1/x⁴ . y²)-²

(3y²/x⁴)-²

(x⁴/3y)²

(x⁴)²/(3y²)²

x⁸/9y⁴

4 votes Thanks 1

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