1/12
Looks like no tags are added yet.
sin2x + cos2x
1
1 + tan2x
sec2x
cot2x + 1
csc2x
sec x
1/cos
csc x
1/sin
cot x
1/tan, or cosx/sinx
0/#
0
0/0
indeterminate
#/0
undef
(a/b)/(c/d)
(a/b)*(c/d)
a0
(ab)n
anbn