Question

6) 41.000x10⁻⁵ + 3 x 10⁻⁴ é igual :
a ) 0,4013.
b)0,4103.
c)0,0413.
d)0,44.
e)0,044.

Answer 1

$41.10^{3}.10^{-5}+3.10^{-4} \\ 41.10^{-2}+3.10^{-4} \\ 41.10^{-2}+3.10^{-2}.10^{-2} \\ 10^{-4}(41.10^{2}+3) \\ 10^{-4}(4103)=0,4103$