Question

Coroana!!!!
Calculati numarul de cifre zecimale pentru a si b:
a=$0.2^{100}$×$25^{50}$
b=$0.25^{25}$×$0.04^{25}$

Answer 1

$a=\frac{1}{5} \cdot 25^{50}=\frac{1^{100}}{5^{100}}\cdot 25^{50}=\frac{1}{5^{2\cdot 50}}\cdot 25^{50}=\frac{1}{25^{50}}\cdot 25^{50}=1$ 
La b se face similar cu $0.25=\frac{1}{4}$ si$0,04=\frac{4}{100}=\frac{1}{25}$ de aici ajungi la b$=\left(\frac{1}{100}\right)^{25}$ de unde b=0,0..01 cu 49 de 0 intre virgula si 1