標題:
law of indices
發問:
Which of the following is not expressed in scientific notation? I. 8.2x10^7 II. (7/1000)x10^3 III. 0.34x10^(-5) Give step...
最佳解答:
I. correct II. wrong (7/1000)x10^3 =7x10^3x10^3 =7x10^(3+3) =7x10^6 III. wrong 0.34x10^(-5) =3.4x10^(-1)x10^(-5) =3.4x10^[(-1)+(-5)] =3.4x10^(-6)
其他解答:
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