Datrys (5/2)^10*[(5/4)^5]^-2

$$( \frac { 5 } { 2 } ) ^ { 10 } \cdot [ ( \frac { 5 } { 4 } ) ^ { 5 } ] ^ { - 2 }$$

Enrhifo

$$1024$$

Camau Ateb

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 5 a -2 i gael -10.

$$\left(\frac{5}{2}\right)^{10}\times \left(\frac{5}{4}\right)^{-10}$$

Cyfrifo \frac{5}{2} i bŵer 10 a chael \frac{9765625}{1024}.

$$\frac{9765625}{1024}\times \left(\frac{5}{4}\right)^{-10}$$

Cyfrifo \frac{5}{4} i bŵer -10 a chael \frac{1048576}{9765625}.

$$\frac{9765625}{1024}\times \frac{1048576}{9765625}$$

Lluosi \frac{9765625}{1024} a \frac{1048576}{9765625} i gael 1024.

$$1024$$

Ffactor

$$2^{10}$$