Inverse trigo prob

**banku12** · May 3rd 2010, 03:53 AM

$S = tan^{-1}(1/3)+tan^{-1}(1/5)+tan^{-1}(1/7)+..........+tan^{-1}(1/(2n-1))$

if S is $\pi/4$ find $n$

**Grandad** · May 3rd 2010, 10:31 PM

Hello banku12

Originally Posted by banku12

$S = tan^{-1}(1/3)+tan^{-1}(1/5)+tan^{-1}(1/7)+..........+tan^{-1}(1/(2n-1))$

if S is $\pi/4$ find $n$

I think there's a mistake in the question.

The attachment shows an extract from a spreadsheet. None of the sums gives $S$ the value $\pi/4$ .

Grandad

Thread: Inverse trigo prob

LinkBack

Thread Tools

Display

Inverse trigo prob

Similar Math Help Forum Discussions

trigo inverse

trigo inverse problem

trigo prob

Inverse Trigo Functions

Inverse Trigo Functions

Search Tags