Posted by **kim** on Sunday, April 19, 2009 at 8:50pm.

how would you create an equation for sec(2x) using both sec(x) and csc(x)?

the steps i have so far are

1/(cos^2(x)-sin^2(x))

= 1/(1-1)/(sec^2(x)-csc^2(x))

but then i do not know what to do after this.