Question

c)[9 la puterea a doua-2 la puterea 4*5 la puterea a noua /(5 la puterea a patra)la puterea a doua]/2 la puterea a doua

Answer 1

$[ 9 ^ { 2 } - 2 ^ { 4 } \times 5 ^ { 9 } : ( 5 ^ { 4 } ) ^ { 2 } ] : 2 ^ { 2 }$

$\frac{9^{2}-\frac{2^{4}\times 5^{9}}{5^{8}}}{2^{2}}$

$\frac{81-\frac{2^{4}\times 5^{9}}{5^{8}}}{2^{2}}$

$\frac{81-5\times 2^{4}}{2^{2}}$

$\frac{81-5\times 2^{4}}{4}$

$\frac{81-5\times 16}{4}$

$\frac{81-80}{4}$

$raspuns = > \frac{1}{4}=0.25$

Sper ca ti-am fost de folos. Succes!!!