Solving for |a| in a Complex Number Equation

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SUMMARY

The discussion focuses on solving the equation \( ia^3 + a^2 - a + 1 = 0 \) for the complex number \( a \) and determining the magnitude \( |a| \). Participants suggest substituting \( a = x + iy \) as a method, while also referencing the Cardano formula for finding roots. The conversation shifts towards finding the maximum value of \( |a - 3 - 4i| \), questioning whether this approach simplifies the solution process. Ultimately, no definitive shortcut is identified, and the complexity of the roots remains a challenge.

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aviravir1
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if a is a complex number which satisfy ia^3+a^2-a+1=0

then find \left | a \right | ?

one way is to put a=x+iy

any other short way ?
 
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ok the real question was find the maximum value of \left | a -3-4i\right |<br />

now will that help in any way making the soln shorter...i guess not..but still will it?
 

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