Question

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Answer 1

(p / q)³ . (q / p)⁻³
(p³ / q³) . (q⁻³ / p⁻³)

berlaku :

a⁻³ = 1 / a³
1 / a⁻³ = a³

(p³ / q³) . (1 / q³p⁻³)
= (p³ / q³) . (p³ / q³)
= (p³p³ / q³q³)
= (p³⁺³ / q³⁺³)
= (p⁶ / q⁶)
= (p / q)⁶