diff --git a/lib/msun/man/cospi.3 b/lib/msun/man/cospi.3
index 5b33fe2555a1..86e63fb77498 100644
--- a/lib/msun/man/cospi.3
+++ b/lib/msun/man/cospi.3
@@ -62,27 +62,21 @@ where p is the floating\(enpoint precision of
 .Ar x ,
 then the returned value is 1 and it has no significance.
 .Sh SPECIAL VALUES
-.Bl -tag
-.It
-.Fn cospi \*(Pm0
+.Bl -tag -width "cospi(+n/2)"
+.It Fn cospi \*(Pm0
 returns 1.
-.It
-.Fn cospi \*(Pmn/2
+.It Fn cospi \*(Pmn/2
 returns 0 for positive integers
 .Ar n .
-.It
-.Fn cospi n
+.It Fn cospi n
 returns 1 for even integers
 .Ar n .
-.It
-.Fn cospi n
+.It Fn cospi n
 returns \-1 for odd integers
 .Ar n .
-.It
-.Fn cospi \*(Pm\(if
+.It Fn cospi \*(Pm\(if
 return an \*(Na and raises an FE_INVALID exception.
-.It
-.Fn cospi \*(Na
+.It Fn cospi \*(Na
 return an \*(Na and raises an FE_INVALID exception.
 .El
 .Sh SEE ALSO
diff --git a/lib/msun/man/sinpi.3 b/lib/msun/man/sinpi.3
index a5f514d3979f..63a1e3010de5 100644
--- a/lib/msun/man/sinpi.3
+++ b/lib/msun/man/sinpi.3
@@ -62,19 +62,15 @@ where p is the floating\(enpoint precision of
 .Ar x ,
 then the returned value is \*(Pm0 and it has no significance.
 .Sh SPECIAL VALUES
-.Bl -tag
-.It
-.Fn sinpi \*(Pm0
+.Bl -tag -width "sinpi(NaN)"
+.It Fn sinpi \*(Pm0
 returns \*(Pm0.
-.It
-.Fn sinpi \*(Pmn
+.It Fn sinpi \*(Pmn
 returns \*(Pm0 for positive integers
 .Ar n .
-.It
-.Fn sinpi \*(Pm\(if
+.It Fn sinpi \*(Pm\(if
 return an \*(Na and raises an FE_INVALID exception.
-.It
-.Fn sinpi \*(Na
+.It Fn sinpi \*(Na
 return an \*(Na and raises an FE_INVALID exception.
 .El
 .Sh SEE ALSO
diff --git a/lib/msun/man/tanpi.3 b/lib/msun/man/tanpi.3
index 2b95f5daa8b1..b11d54031b71 100644
--- a/lib/msun/man/tanpi.3
+++ b/lib/msun/man/tanpi.3
@@ -62,22 +62,17 @@ where p is the floating\(enpoint precision of
 .Ar x ,
 then the returned value is \*(Pm0 and it has no significance.
 .Sh SPECIAL VALUES
-.Bl -tag
-.It
-.Fn tanpi \*(Pm0
+.Bl -tag -width "tanpi(+n/2)"
+.It Fn tanpi \*(Pm0
 returns \*(Pm0.
-.It
-.Fn tanpi \*(Pmn
+.It Fn tanpi \*(Pmn
 returns \*(Pm0 for positive integers
 .Ar n .
-.It
-.Fn tanpi \*(Pmn/2
+.It Fn tanpi \*(Pmn/2
 returns \*(Na for n > 0 and raises an FE_INVALID exception.
-.It
-.Fn tanpi \*(Pm\(if
+.It Fn tanpi \*(Pm\(if
 return an \*(Na and raises an FE_INVALID exception.
-.It
-.Fn tanpi \*(Na
+.It Fn tanpi \*(Na
 return an \*(Na and raises an FE_INVALID exception.
 .El
 .Sh SEE ALSO