Решение:
1) а) ((3.6 imes 10^3) cdot (1.5 imes 10^{-5}) = 3.6 cdot 1.5 imes 10^{3-5} = 5.4 imes 10^{-2} = 0.054)
б) ((7.8 imes 10^{-4}) cdot (3.5 imes 10^2) = 7.8 cdot 3.5 imes 10^{-4+2} = 27.3 imes 10^{-2} = 0.273)
2) а) ((8.4 imes 10^{-2}) : (2.4 imes 10^{-4}) = (8.4 / 2.4) imes 10^{-2 - (-4)} = 3.5 imes 10^{2} = 350)
б) ((3.36 imes 10^{-3}) : (4.8 imes 10^{-2}) = (3.36 / 4.8) imes 10^{-3 - (-2)} = 0.7 imes 10^{-1} = 0.07)
3) а) (4.1 imes 10^{-3} + 7.9 imes 10^{-3} = (4.1 + 7.9) imes 10^{-3} = 12 imes 10^{-3} = 0.012)
б) (5.2 imes 10^4 + 2.8 imes 10^5 = 5.2 imes 10^4 + 28 imes 10^4 = (5.2 + 28) imes 10^4 = 33.2 imes 10^4 = 3.32 imes 10^5 = 332,000)
Ответы:
1) а) **0.054** б) **0.273**
2) а) **350** б) **0.07**
3) а) **0.012** б) **332000**