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Aleks [24]
3 years ago
9

PLEASE HELP!!!!

Mathematics
2 answers:
Tanya [424]3 years ago
5 0

Answer:

Option A and C.

Step-by-step explanation:

Consider the below figure attached with this question.

The given expression is

3^{\frac{4}{7}}

The properties of exponent:

(a^m)^n=a^{mn}

\sqrt[n]{x}=x^{\frac{1}{n}}

Using these properties simplify all expression.

(\sqrt[7]{3})^4=(3^{\frac{1}{7}})^4=3^{\frac{4}{7}}

\sqrt[4]{21}=21^{\frac{1}{4}}\neq 3^{\frac{4}{7}}

\sqrt[7]{81}=\sqrt[7]{3^4}=(3^4)^{\frac{1}{7}}=3^{\frac{4}{7}}

\sqrt[4]{3^7}=(3^7)^{\frac{1}{4}}=3^{\frac{7}{4}}\neq 3^{\frac{4}{7}}

\sqrt[7]{12}=12^{\frac{1}{7}}\neq 3^{\frac{4}{7}}

(\sqrt[4]{3})^7=(3^{\frac{1}{4}})^7=3^{\frac{7}{4}}\neq 3^{\frac{4}{7}}

Therefore, the correct options are A and C.

Svetach [21]3 years ago
4 0

Answer:

I don't think any of them are

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