Question

How do you prove`(cosx)(cscx)(tanx)=1`?

Answer 1

`(cosx)(cscx)(tanx)=1`

`(cosx)(1/sinx)(sinx/cosx)=1`

I multiply `cosx` by `(sinx/sinx)`

`(cossinx/sinx)(1/sinx)(sinx/cosx)=1`

`cosx/cosx=1`

Explanation:

I use
http://www.regentsprep.org/regents/math/algtrig/ATT9/morepythag.htm
to assist me in proving trigonometric identities and equations.
In the end, you have to play around with it.