# Discussion on: Advance Engineering Mathematics

Following is a discussion on the Reviewer item titled: Advance Engineering Mathematics.

### Maclaurin's Series

Help us find the Maclaurin's series of:

ln tanx

### Re: Maclaurin's Series

Oh ! I am also looking for the answers of some power series equation

### Re: Maclaurin's Series

f(x)=ln(tan(x)
f(x)=ln(tan(x)) - f(0)=0
f^1(x)=sec^2(x)/tan(x) - f(0)=0
:
.
f(x)=ln(tan(x))=0/0!+0/1!+...+0^n/n!+...
Therefore,
ln(tan(x))=Summation of (0^n/n!) with a lower limit of 0 and upper limit of infinity.

## Add new comment

### Deafult Input

• Allowed HTML tags: <img> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <sub> <sup> <blockquote> <ins> <del> <div>
• Web page addresses and e-mail addresses turn into links automatically.
• Lines and paragraphs break automatically.
• Mathematics inside the configured delimiters is rendered by MathJax. The default math delimiters are $$...$$ and $...$ for displayed mathematics, and $...$ and $...$ for in-line mathematics.

### Plain text

• No HTML tags allowed.
• Lines and paragraphs break automatically.