10.2.16 Transforming cos(x) into sin(x)/tan(x)
The cos2sintan
command replaces cos(x) by sin(x)/tan(x) in an expression.
-
cos2sintan takes
expr, an expression containing trigonometric functions.
- cos2sintan(expr) returns
expr with anything of the form cos(x) replaced by
sin(x)/tan(x).
Example