Question

Efectuati utilizind regula : 2 la puterea 19 * 2 la puterea 21

Answer 1

^.inseamna ridicare la putere. vine. 2^19•2^21=2^19+21=2^40

Answer 2

$\displaystyle 2^{19} \cdot 2^{21}=2^{19+21}=2^4^0$