Question

nhắc lại 5 công thức về lũy thừa

Answer 1

\(a^m.a^n=a^{m+n}\)

\(a^m:a^n=a^{m-n}\)

\(a^m:b^m=\left(a:b\right)^m\)

\(a^m.b^m=\left(a.b\right)^m\)

\(a^{m^n}=a^{m.n}\)

Answer 2

\(a^m\cdot a^n=a^{m+n}\)

\(a^m\div a^n=a^{m-n}\left(a\ne0;\text{ }m>n\right)\)

\(\left(a^m\right)^n=a^{m\cdot n}\)

\(\left(a\cdot b\right)^m=a^m\cdot b^m\)

\(\left(a\div b\right)^n=a^n\div b^n\left(b\ne0\right)\)

Answer 3

\(k^m:k^n=k^{m-n}\)

\(k^m:h^m=\left(k:h\right)^m\)

\(k^m.h^m=\left(k.h\right)^m\)

\(k^m.k^n=k^{m+n}\)

\(k^0=1\)

\(k^1=k\)

\(\left(\frac{k}{h}\right)^m=\frac{k^m}{h^m}\)

\(k^{-n}=\frac{1}{k^n}\)