aieee test 1

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question no 72) maths - what is the value of |log(i)| where i is √-1?

a)pi/2
b)pi/3
c)1/2
d)0

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8 Answers

106

Asish Mahapatra ·2009-04-16 20:17:09

llog(i)l = llog(e^iÏ€/2)l
= l iÏ€/2 l
= Ï€/2

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1

Optimus Prime ·2009-04-16 20:22:13

but dude log(i)=0 the e⁰=√-1

1=√-1
1=1

hence i think 0 shud be the answer

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106

Asish Mahapatra ·2009-04-16 20:24:57

why log(i) = 0 ??

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1

Optimus Prime ·2009-04-16 20:26:32

since they have asked to find the value of log i only when the value of log i is 0 the equation is satisfied

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106

Asish Mahapatra ·2009-04-16 20:27:58

which equation??

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1

Optimus Prime ·2009-04-16 20:28:41

dude when we take log i =0 then only lhs =rhs

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62

Lokesh Verma ·2009-04-16 20:28:50

no amit..

see e⁰=1

when did it start becoming i??

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1

Optimus Prime ·2009-04-16 20:38:37

ohh sorry kick me for such a mistake

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω