# Dividing fractionsuibs= by fract

1. May 3, 2005

### lektor

hi, while doing trig identities i've found im gonna need to understand this..

cosx + sinx/cosx
---------------
1/cosx

sorry latex confused me so this is the best i can do :O

this is not an actuall question but just what i need help with :]

Last edited: May 3, 2005
2. May 3, 2005

### Data

What in particular do you need to understand about it?

3. May 3, 2005

### ahrkron

Staff Emeritus
Do you need to reduce the expression? What can you do with it?

4. May 3, 2005

### HallsofIvy

Staff Emeritus
I presume you mean $$\frac{cos(x)+ \frac{sin(x)}{cos(x)}}{\frac{1}{cox(x)}$$

Dividing by a fraction is the same as inverting the fraction and multiplying:
$$(cos(x)+ \frac{sin(x)}{cos(x)})(cos(x)$$. Does that help?