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larisa [96]
3 years ago
14

What is the value of n in the equation below a^n/a^3=a^9

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0
One way in which you could do this problem quickly and accurately would be to mult. both sides by a^3, to elim. the fraction:

a^n = a^9 * a^3 = a^(9+3)  = a^12.    Thus, n = 12.
N76 [4]3 years ago
3 0

Answer: 12

Step-by-step explanation:

The given equation : \frac{a^n}{a^3}=a^9...........................(1)

According to the division law of exponent,

\frac{x^m}{x^r}=x^{m-r}

Therefore, \frac{a^n}{a^3}=a^{n-3}...................................(2)

From equation (1) and (2), we have

a^{n-3}=a^9

Since, the base is same in both sides, therefore, the exponents must be same.

\Rightarrow n-3=9\\\\\Rightarrow\ n=9+3=12

Hence, the value of n = 12.

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