Question

2,1.10-3+5,1.10-3 5,4.10²+2,0.10³ 2,5.10⁴×1,0.10.³ 4,1.10-⁷:5,1,10.³

Answer 1

Resposta:

$2,1x10^{-3} +5,1x10^{-3} \\7,2x10^{-3}$

$5,4x10^{2} +2,0x10^{3} \\2540$

$ou\\2,540x10^{3}$

$2,5x10^{4} *1,0x10^{3} \\25000000$

$ou\\2,5x10^{7}$

$4,1x10^{-7} /5,1x10^{3} \\8,039215686x10^{-11}$