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प्रश्न
By what number should (–8)–3 be multiplied so that the product may be equal to (–6)–3?
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उत्तर
Let x be the number multiplied with (–8)–3 to get the product equal to (–6)–3.
⇒ x × (–8)–3 = (–6)–3
⇒ `x = (-6)^-3/(-8)^-3`
= `(-8)^3/(-6)^3`
= `512/216`
= `64/27`
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