Question

Exercitiile urmatoare :10 &11

Answer 1

10. a) (n+83)/2=51,5

n+83=51,5*2

n+83=103

n=103-83

n=20

b) n+83=47,5*2

n+83=95

n=95-83

n=12

c) n+83=81,5*2

n+83=163

n=163-83

n=80

d) n+83=79,5*2

n+83=159

n=159-83

n=76

11. a) x=3^35:(3^3)^11=3^35:3^33=3^2=9

y=(2^13)^2:(2^4)^6=2^26:2^24=2^2=4

Ma=(9+4)/2=13/2

b) x=(2^12)^3:(2^3)^10=2^36:2^30=2^6=64

y=7^51:(7^2)^25=7^51:7^50=7^1=7

Ma=(64+7)/2=71/2