Question

va rog mult- ex 4 si 5 doar cele inconjurate

Answer 1

De principiu, cand avem aceeasi baza, la inmultire puterile se aduna, iar la impartire puterile se scad.

/=fractie,impartire

4)
a)=(2/3)¹²
b)=(7/8)²¹
c) 1 1/4=5/4
=(5/4)¹¹
d) 1 2/3=5/3
10/6=5/3
=(5/3)²⁶

5)
a) =(5/7)⁶
b)=(4/9)¹¹
c) 1 1/3=4/3
8/6=4/3

=(4/3)³⁴:(4/3)⁷x(4/3)⁵=(4/3)³⁴⁻⁷⁺⁵=(4/3)³²

d) 1-2/3=1/3
(1/3)¹⁷:(1/3)⁸=(1/3)¹⁷⁻⁸=(1/3)⁹