Question

(II) if 3^n=27, then find the value of 3^n-2

Answer 1

Answer:

3

Step-by-step explanation:

If 3ⁿ = 27

Then the value of 3ⁿ⁻² = ?

3ⁿ = 27

3ⁿ = 3³

n=3

3ⁿ⁻² = 3³⁻² = 3¹ = 3

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Answer 2

Answer:

$3^{n-2} = 3$

Step-by-step explanation:

$3^n = 27\\3^n = 3^3\\>> n=3$

then value of $3^{n-2}$,

$3^{3-2} = 3^1\\= 3$