Răspuns:
Explicație pas cu pas:
a+b=541
a:b=3 si rest 21 sau cu alte cuvinte a=3b+21 pe care o inlocuim in prima:
3b+21+b=541
4b=520
b=130 a=3*130+21=411
verificare: a+b=411+130=541
a:b=3 si rest 21
2.
a=6*5^1982-(3*5^2)*5^1980-2*(5^2)^91=6*5^1982-3*5^1982-2*5^182=3*5^1982-2*5^182
b=3*3*3^991+5*3^991-4*3*3^991-3^991=(9+5-12-1)*3^991=3^991
sa le comparam, dupa ce facem cateva prelucrari:
a=3*5^1982-2*5^182>3*5^1982-3*5^182=3*(5^1982-5^182)=3*5^182*(5^1800-1)>3*5^182*5^1799=3*5^1981=3*3^1981=3^1982=3^(2*991)
deci a/b> 3^(2*991)/3^991=3^991>>>1
deci a>>>b
