Question

dau 20 puncte. vreau raspunsul urgent

Answer 1

b) 2^3=8 ; 2^4=16; 2^5=32; 2^6=64; 2^7=128; 2^8=256
n€{4,5,6,7}
c) 3^1=1 <57<3^2=9 (F)
3^2=9 < 57 < 3^3=27(F)
3^3=27 < 57 < 3^4=81 (A)
n+1=3
n+2=4 → n=2

d)7^(n-2)≤343
7^0=0 → n-2=0→ n=2
7^1=7 → n-2=1→ n=3
7^2=49 → n=4
7^3=343 → n=5
n€{2, 3, 4, 5}