Question

степени
$12* 10^{-11}-30*10^{-13}=$

Answer 1

12*10⁻¹¹ - 30*10⁻¹³ = 10⁻¹¹ (12 - 30*10⁻²) = 10⁻¹¹ (12 - 0,3)=
= 11,7 * 10⁻¹¹