Question 922848
Which identity could be used to transform the expression on the left to the one on the right.
tanA + cotA to cscA secA
***
Use x for theta.( I don't type very well)
{{{tanx+cotx=sinx/cosx+cosx/sinx=(sin^2(x)+cos^2(x))/sinxcosx=1/sinxcosx=(1/sinx)(1/cosx)=cscxsecx}}}
..
I used the following 5 identities for this proof.
tanx=sinx/cosx
cotx=cosx/sinx
sin^2(x)+cos^2(x)=1
1/sinx=cscx
1/cosx=secx