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What is the reason that every quintic equation is convertible into the bring-jerrard's normal form using the Tschirnhaus transform? It seems to be impossible but isn't... Why is it so? Why don't this transform change the solutions?Don't spam!!!​

Answer»

Answer:

The value of –1 <= cosθ <=1

So, there is no real θ for which the value of cosθ = 4.996.

So, the complex and IMAGINARY solution for the above question is θ = ±2.2916i

where, i = √(–1)

Refer the attachment for the solution

And, the value of θ for cosθ = 0.4996

=> θ = 60° 1' 35''



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