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Lola says these two expressions have the same value.

Expression A:
[tex]\[
\left[\left(\frac{a}{b}\right)^{-4}\right]^0
\][/tex]

Expression B:
[tex]\[
\left[\left(\frac{a}{b}\right)^0\right]^{-4}
\][/tex]

Which explains whether Lola is correct?

A. Lola is correct because each expression has a value of 0.
B. Lola is correct because each expression has a value of 1.
C. Lola is not correct because the value of Expression A is 1 and the value of Expression B is [tex]\(\left(\frac{b}{a}\right)^4\)[/tex].
D. Lola is not correct because the value of Expression A is [tex]\(\left(\frac{b}{a}\right)^4\)[/tex] and the value of Expression B is 1.


Sagot :

Let's analyze and simplify both expressions term by term to determine whether Lola is correct.

### Expression A:
[tex]\[ \left[ \left( \frac{a}{b} \right)^{-4} \right]^0 \][/tex]

1. Inner Expression: [tex]\(\left( \frac{a}{b} \right)^{-4}\)[/tex]
- A fraction raised to a power with a negative exponent means we take the reciprocal and then raise it to the corresponding positive power:
[tex]\[ \left( \frac{a}{b} \right)^{-4} = \left( \frac{b}{a} \right)^4. \][/tex]

2. Outer Expression: [tex]\(\left(\cdots\right)^0\)[/tex]
- Any nonzero number raised to the power of 0 is 1:
[tex]\[ \left[ \left( \frac{b}{a} \right)^4 \right]^0 = 1. \][/tex]

So, the value of Expression A is [tex]\(1\)[/tex].

### Expression B:
[tex]\[ \left[ \left( \frac{a}{b} \right)^0 \right]^{-4} \][/tex]

1. Inner Expression: [tex]\(\left( \frac{a}{b} \right)^0\)[/tex]
- Any number raised to the power of 0 is 1:
[tex]\[ \left( \frac{a}{b} \right)^0 = 1. \][/tex]

2. Outer Expression: [tex]\(1^{-4}\)[/tex]
- 1 raised to any power is still 1:
[tex]\[ \left( 1 \right)^{-4} = 1. \][/tex]

So, the value of Expression B is [tex]\(1\)[/tex].

### Conclusion:
Since both Expression A and Expression B evaluate to [tex]\(1\)[/tex], Lola is correct in stating that both expressions have the same value.

Therefore, the correct statement is:
- Lola is correct because each expression has a value of 1.