Color test: red, blue, magen ta
㑚
x
0
cos
t
d
t
=
∞
㑘
k
=0
(
㐀
1)
k
x
2
k
+1
(2
k
+ 1)!
F on t st yles:
b old
,
emphasize d
,
sans serif
,
Small Caps
,
slan ted
1