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How to solve [tan(ln(x))]^2 = -1 ?

lvl107
20-Turquoise

How to solve [tan(ln(x))]^2 = -1 ?

  Hello, Everyone

(1).PNG

  How to solve [tan(ln(x))]^2 = -1 ?

      Thanks in advance.

            Regards.

1 ACCEPTED SOLUTION

Accepted Solutions
Werner_E
24-Ruby V
(To:lvl107)

There is no solution!

Why do you think that this is a solution??? Its obviously not:

View solution in original post

5 REPLIES 5
Werner_E
24-Ruby V
(To:lvl107)

  How to solve [tan(ln(x))]^2 = -1 ?

Why do you think that this equation is solvable? It is not!! No solution exists!

Because tan(x)=i has no solution!  atan(i) is undefined (singularity).

lvl107
20-Turquoise
(To:Werner_E)

But I still guess :

(2).PNG

Furthermore :

(3).PNG

(4).PNG

                Regards.

Werner_E
24-Ruby V
(To:lvl107)

There is no solution!

Why do you think that this is a solution??? Its obviously not:

lvl107
20-Turquoise
(To:Werner_E)

Oh, I'm wrong because :

(5).PNG

            Best Regards.

-MFra-
21-Topaz II
(To:lvl107)

Hi Loi Le,

I'm sorry, Ivn't reed the other answers.

tantan.jpg

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