# Homework Help: Trig solution, tanx+secx=1

1. Jul 17, 2011

### jrjack

1. The problem statement, all variables and given/known data
tanx+secx=1

2. Relevant equations

3. The attempt at a solution
tanx+secx=1
tanx=1-secx then square both sides???
$$\tan^2 x= 1-2\sec x+\sec^2 x$$$$\sec^2 x-1=1-2\sec x+\sec^2 x$$$$2-2\sec x=0$$$$\sec x=0$$ No Solution

2. Jul 17, 2011

### LCKurtz

2 -2sec(x)=0 gives sec(x)=1, not 0.

3. Jul 17, 2011

### jrjack

Thanks, I was trying to factor out a 2 when,
I should have subtracted 2 then divided by 2, getting sec(x)=1