Question

wykonaj działania
c) (n do 10 : n do 7 )* (n do 12 * n do 8 ) * (n do 15 * n do 9 ) =
d) a do 20 [ a do 15 * ( a do 13 ; a do 9 ) ; 9 a do 2 * a do 12) ]

Answer 1

Własności potęg

=====================

c) (n¹⁰ : n⁷)* (n¹² * n⁸) * (n¹⁵ * n⁹) =

=(n¹⁰⁻⁷)* (n¹²⁺⁸) * (n¹⁵⁺⁹) =

=n³ * n²⁰ * n²⁴=

=n³⁺²⁰⁺²⁴=

=n⁴⁷

---
d) a²⁰ * [a¹⁵ * ( a¹³ : a⁹) : (a² * a¹²)]=

=a²⁰ * [a¹⁵ * ( a¹³⁻⁹) : (a²⁺¹²)]=

=a²⁰ * [a¹⁵ * a⁴ : a¹⁴]=

=a²⁰ * a¹⁵⁺⁴⁻¹⁴=

=a²⁰ * a⁵=

=a²⁰⁺⁵=

=a²⁵