0
$\begingroup$

This question already has an answer here:

I have a result with trigonometry functions using Cot and Csc. I would like to keep only cos, sin and tan and so prefer fractions in the display of the results. How is it possible to ask Mathematica for not using Cot, Csh ... ?

Thank you for your help

$\endgroup$

marked as duplicate by Jens, bbgodfrey, Karsten 7., Dr. belisarius, bobthechemist Mar 6 '15 at 18:03

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

0
$\begingroup$

I would define it as follows.

 f[x_] := (E^(3 x + 2))HoldForm[(1/Sin[2*x])]

If you type in f[x] , it returns e^(3x+2) (1/Sin[2x])

In order to evaluate it at any time,

  ReleaseHold[ f[x]] /. x -> Pi/4
$\endgroup$

Not the answer you're looking for? Browse other questions tagged or ask your own question.