You are Here: Home >< Maths

# trigo trigo trigo triiiiiiiiiiiiiiiiiiii goooogogogo!! watch

1. can any one help me to solve..

Prove cosec x + cot x = 1/ (cosec x - cot x)

prove (sec x -1 )/ (tan x) = (tan x) / (sec x + 1)
2. Start from one side and make your way to the other.

So how can you write? 1/ (cosec x - cot x) in terms of cos and sin? for example?
3. divide both sides of the first equation by cosxcosecx then multiply up and rearrange.
4. (Original post by kexy)
Start from one side and make your way to the other.

So how can you write? 1/ (cosec x - cot x) in terms of cos and sin? for example?

1 / sin x + cos x / sin x
5. (Original post by Totally Tom)
divide both sides of the first equation by cosxcosecx then multiply up and rearrange.

how can i divide both side? this is proving q.. means i need to work from one side...
6. oh my.............................. ...........................
7. First one: Multiply the numerator and denominator by (cosec x + cot x) on the RHS (some others have suggested a different way, this is how I would tackle it though)

Second one: Multiply across the denominators of the fractions and see whether you come across a known identity.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: February 8, 2010
Today on TSR

Get the low down

### University open days

• University of Exeter
Wed, 24 Oct '18
Wed, 24 Oct '18
• Northumbria University
Wed, 24 Oct '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams