Please answer me the E one
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Answered by
2
Answer:
81
Step-by-step explanation:
3^-5 × 3^7 / 3^-2
= 3^(-5 + 7)/ 3^-2
= 3^2/ 3^-2
= 3^2 × 3^2 = 3^(2 + 2) = 3^4
= 3 × 3 × 3 × 3 = 81
Answered by
2
Answer:
81
Step-by-step explanation:
3⁻⁵ * 3 ⁷ / 3⁻²
//remember aⁿ * aˣ = aⁿ⁺ˣ
solving numerator = ⁷⁺⁽⁻⁵⁾ = 3⁷⁻⁵ = 3²
= 3²/3⁻²
//remember aⁿ / aˣ = aⁿ ⁻ ˣ
=> 3²/3⁻² = 3 ² ⁻ ⁽⁻²⁾ = 3 ²⁺² = 3⁴ = 81
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