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Which is equivalent to [tex]\sqrt{10^{\frac{3}{4}} x}[/tex]?

A. [tex](\sqrt[3]{10})^{4 x}[/tex]

B. [tex](\sqrt[4]{10})^{3 x}[/tex]

C. [tex](\sqrt[6]{10})^{4 x}[/tex]

D. [tex](\sqrt[8]{10})^{3 x}[/tex]


Sagot :

To determine which expression is equivalent to [tex]\(\sqrt{10^{\frac{3}{4}} x}\)[/tex], we need to simplify this expression and compare it to the given options:

Let's start by simplifying [tex]\(\sqrt{10^{\frac{3}{4}} x}\)[/tex].

1. Simplify the expression inside the square root:

[tex]\[ \sqrt{10^{\frac{3}{4}} x} \][/tex]

2. Use the property of exponents and square roots:

[tex]\[ \sqrt{a} = a^{\frac{1}{2}} \][/tex]

Apply this property:

[tex]\[ \sqrt{10^{\frac{3}{4}} x} = (10^{\frac{3}{4}} x)^{\frac{1}{2}} \][/tex]

3. Simplify the expression inside the parentheses:

[tex]\[ (10^{\frac{3}{4}} x)^{\frac{1}{2}} = 10^{\frac{3}{4} \cdot \frac{1}{2}} \cdot x^{\frac{1}{2}} \][/tex]

Simplify the exponent:

[tex]\[ 10^{\frac{3}{4} \cdot \frac{1}{2}} = 10^{\frac{3}{8}} \][/tex]

So the expression simplifies to:

[tex]\[ 10^{\frac{3}{8}} \cdot x^{\frac{1}{2}} \][/tex]


Now, let's compare each of the given expressions to find the match:

1. Option (a): [tex]\((\sqrt[3]{10})^{4 x}\)[/tex]

Simplify [tex]\(\sqrt[3]{10}\)[/tex]:

[tex]\[ \sqrt[3]{10} = 10^{\frac{1}{3}} \][/tex]

Raise this to the power [tex]\(4x\)[/tex]:

[tex]\[ (\sqrt[3]{10})^{4 x} = \left(10^{\frac{1}{3}}\right)^{4 x} = 10^{\frac{4 x}{3}} \][/tex]

This does not match [tex]\(10^{\frac{3}{8}} \cdot x^{\frac{1}{2}}\)[/tex].

2. Option (b): [tex]\((\sqrt[4]{10})^{3 x}\)[/tex]

Simplify [tex]\(\sqrt[4]{10}\)[/tex]:

[tex]\[ \sqrt[4]{10} = 10^{\frac{1}{4}} \][/tex]

Raise this to the power [tex]\(3 x\)[/tex]:

[tex]\[ (\sqrt[4]{10})^{3 x} = \left(10^{\frac{1}{4}}\right)^{3 x} = 10^{\frac{3 x}{4}} \][/tex]

This does not match [tex]\(10^{\frac{3}{8}} \cdot x^{\frac{1}{2}}\)[/tex].

3. Option (c): [tex]\((\sqrt[6]{10})^{4 x}\)[/tex]

Simplify [tex]\(\sqrt[6]{10}\)[/tex]:

[tex]\[ \sqrt[6]{10} = 10^{\frac{1}{6}} \][/tex]

Raise this to the power [tex]\(4 x\)[/tex]:

[tex]\[ (\sqrt[6]{10})^{4 x} = \left(10^{\frac{1}{6}}\right)^{4 x} = 10^{\frac{4 x}{6}} = 10^{\frac{2 x}{3}} \][/tex]

This does not match [tex]\(10^{\frac{3}{8}} \cdot x^{\frac{1}{2}}\)[/tex].

4. Option (d): [tex]\((\sqrt[8]{10})^{3 x}\)[/tex]

Simplify [tex]\(\sqrt[8]{10}\)[/tex]:

[tex]\[ \sqrt[8]{10} = 10^{\frac{1}{8}} \][/tex]

Raise this to the power [tex]\(3 x\)[/tex]:

[tex]\[ (\sqrt[8]{10})^{3 x} = \left(10^{\frac{1}{8}}\right)^{3 x} = 10^{\frac{3 x}{8}} \][/tex]

This matches [tex]\(10^{\frac{3}{8}} \cdot x^{\frac{1}{2}}\)[/tex].

Therefore, the expression [tex]\(\sqrt{10^{\frac{3}{4}} x}\)[/tex] is equivalent to [tex]\((\sqrt[8]{10})^{3 x}\)[/tex].

Thus, the correct answer is:

[tex]\[ (\sqrt[8]{10})^{3 x} \][/tex]