Answer:
The equivalent expression
![(8^4)/(7^4) = (4096)/(2401)\approx 1.71](https://img.qammunity.org/2021/formulas/mathematics/college/o16my83fu797unv3jsf6kzekzbyucf57c1.png)
Explanation:
Given:
![((8)/(7))^4](https://img.qammunity.org/2021/formulas/mathematics/college/hs03hn82mhuhucmzyiywgld76lqz1yeepi.png)
We need to find the equivalent for given expression.
Solution:
![((8)/(7))^4](https://img.qammunity.org/2021/formulas/mathematics/college/hs03hn82mhuhucmzyiywgld76lqz1yeepi.png)
Now by using Law of indices which states;
![((a)/(b))^n= (a^n)/(b^n)](https://img.qammunity.org/2021/formulas/mathematics/college/mm6l0p9bybj4qe46xsh8152xi68gir7ima.png)
So applying the same in given expression we get;
![(8^4)/(7^4)](https://img.qammunity.org/2021/formulas/mathematics/college/5yh3odxyrtw0clkoe6awk0frnn7oglggyh.png)
Now we can say that;
![8^4 = 8 * 8 * 8 * 8](https://img.qammunity.org/2021/formulas/mathematics/college/jafho0i43hzqyzmby2vpv526zvmowa3615.png)
Also
![7^4 = 7 * 7 * 7 * 7](https://img.qammunity.org/2021/formulas/mathematics/college/7ozmk9dj6xe8i6ak1rvrskqtx066biidub.png)
![(8^4)/(7^4) = (8 * 8 * 8 * 8)/(7 * 7 * 7 * 7)](https://img.qammunity.org/2021/formulas/mathematics/college/l6hmteo0j5uuti28gx7lxh6ovpwqxt860s.png)
Now We know that;
![8 * 8 * 8 * 8 = 4096](https://img.qammunity.org/2021/formulas/mathematics/college/qtzjuuito5bx50ipa6sdn76uaod09dl7lh.png)
![7 * 7 * 7 * 7 = 2401](https://img.qammunity.org/2021/formulas/mathematics/college/7zllxjhepwijxw38ajewltbv6kzh9t6hi0.png)
On substituting we get;
![(8^4)/(7^4) = (4096)/(2401)\approx 1.71](https://img.qammunity.org/2021/formulas/mathematics/college/o16my83fu797unv3jsf6kzekzbyucf57c1.png)
Hence The equivalent expression
![(8^4)/(7^4) = (4096)/(2401)\approx 1.71](https://img.qammunity.org/2021/formulas/mathematics/college/o16my83fu797unv3jsf6kzekzbyucf57c1.png)