f.3科學記數法
2017/07/04 15:32
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標題:
f.3科學記數法
發問:
1) 3.62 x 10^(-3) + 2.3 x 10^(-4) 2) (5.03 x 10^ -2) x (7.3 x 10^ -2)
最佳解答:
1. 3.62 X 10-3 + 2.3 X 10-4 = 3.62 X 10-3 + 0.23 X 10 X 10-4 = 3.62 X 10-3 + 0.23 X 101 + (-4) = 3.62 X 10-3 + 0.23 X 10-3 = (3.62 + 0.23) X 10-3 = 3.85 X 10-3 2. (5.03 X 10-2) X (7.3 X 10-2) = (5.03 X 7.3) X (10-2 X 10-2) = 36.719 X 10(-2) + (-2) = 3.6719 X 10 X 10-4 = 3.6719 X 101 + (-4) = 3.6719 X 10-3
f.3科學記數法
發問:
1) 3.62 x 10^(-3) + 2.3 x 10^(-4) 2) (5.03 x 10^ -2) x (7.3 x 10^ -2)
最佳解答:
1. 3.62 X 10-3 + 2.3 X 10-4 = 3.62 X 10-3 + 0.23 X 10 X 10-4 = 3.62 X 10-3 + 0.23 X 101 + (-4) = 3.62 X 10-3 + 0.23 X 10-3 = (3.62 + 0.23) X 10-3 = 3.85 X 10-3 2. (5.03 X 10-2) X (7.3 X 10-2) = (5.03 X 7.3) X (10-2 X 10-2) = 36.719 X 10(-2) + (-2) = 3.6719 X 10 X 10-4 = 3.6719 X 101 + (-4) = 3.6719 X 10-3
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