Math Help - Trigo- product

1. Trigo- product

Solve in R this equation :

2. $sin x cos x tan x=1$
$sin x cos x\frac{sin x}{cos x}=1$
$sin^2x=1$
$sin x=+1$ or $sin x=-1$
$x=\frac{\pi}{2}+2n\pi$ or $x=-\frac{\pi}{2}+2n\pi$

3. Originally Posted by alexmahone
$sin x cos x tan x=1$
$sin x cos x\frac{sin x}{cos x}=1$
$sin^2x=1$
$sin x=+1$ or $sin x=-1$
$x=\frac{\pi}{2}+2n\pi$ or $x=-\frac{\pi}{2}+2n\pi$
The above poster is right but bear in mind $n \in \mathbb{Z}$

(ie: n must be an integer)