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分类:中学其它科目 | 用户: (46,890 分) 21 50 59
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Can anyone show the working on lg -6= 0.77815125 + 1.36437635 i or lg -6 =undefined

*Note that the first answer is from google(so I am not so sure about it)
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用户: (530 分) 2 3
And yes, in common logarithm, log x = y
 x > 0.
So log (-6) is undefined.

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用户: (530 分) 2 3
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Please google the differences between common logarithm (base 10) vs natural logarithm (base e).

Value of e is 2.71828128

i is an imaginary number where i2 = -1

Solution as requested in attached photo, 
用户: (46,890 分) 21 50 59
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Thanks for your clear and detailed explanation!
用户: (46,890 分) 21 50 59
Am I going to learn about "euler's identity" in form 5 addmaths?(I am going to be form 5 in the month of March)
用户: (530 分) 2 3
Sorry I am not quite sure, I am not a local student (yet my children is, I opened this account for my children).

it's enough to know the formula exists for the meantime, and you may  ask your teacher later once school commences.
用户: (46,890 分) 21 50 59
alright thanks!
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