## anonymous 5 years ago express secx in terms of tanx

1. mathteacher1729

Did my reply come through the first time you asked this?

2. anonymous

3. anonymous

if you forget how to do this always start with $sin^2(x)+cos^2(x)=1$

4. anonymous

to get tangent divide by $cos^2(x)$ to get $tan^2(x)+1=sec^2(x)$

5. anonymous

if you want to solve for secant write $sec(x)=\pm\sqrt{tan^2(x)+1}$

6. anonymous

dont forget the plus or minus, because without further information you cannot know which