Question

Va rog ex 19 punctele a si c !!Dau 5 stele !!​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

-1/2 + 1/3 = -3/6 + 2/6 = -1/6

(-1/6)^4 = 1/6^4

(-1/6)^5 = -1/6^5

1/6^4 * (-1/6^5) = -1/6^9

(1/36)^4 = 1/6^8

-1/6^9 : 1/6^8 = -1/6

_________________

b)

(-1/3 - 1/2) = -2/6 - 3/6 = -5/6

(-5/6)^-1= -6/5

(-6/5)^-5 = -(5/6)^5

(6/5)^-1 = 5/6

-(5/6)^5 * 5/6 = -(5/6)^6

25/36 = (5/6)^2

(25/36)^3 = (5/6)^6

-(5/6)^6 : (5/6)^6 = -1