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Question:
chem and math sir please do a live session on ef youtube this is my sincere request on behalf of the 300k ef students. also what is i to the exponential power i [complex numbers
Answer:

Let A = ii 

Take log on both side, we get

    log A = log ii

=> log A = i log i

=> log A = i log(0 + i)

=> log A = i [log1 + i tan-1 ∞]

=> log A = i [0 + i π/2]

=> log A = -π/2

=> A = e-π/2

So, the value of ii is e-π/2

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