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20-Turquoise

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

Hello, Everyone

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

Regards.

1 ACCEPTED SOLUTION

Accepted Solutions
24-Ruby V
(To:lvl107)

There is no solution!

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

5 REPLIES 5
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).

20-Turquoise
(To:Werner_E)

But I still guess :

Furthermore :

Regards.

24-Ruby V
(To:lvl107)

There is no solution!

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

20-Turquoise
(To:Werner_E)

Oh, I'm wrong because :

Best Regards.

21-Topaz II
(To:lvl107)

Hi Loi Le,

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

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