diff --git a/dlls/msvcp90/math.c b/dlls/msvcp90/math.c
index 9f75cd4f9b1..c13fd3c224b 100644
--- a/dlls/msvcp90/math.c
+++ b/dlls/msvcp90/math.c
@@ -1312,6 +1312,34 @@ complex_float* __cdecl complex_float_conj(complex_float *ret, const complex_floa
     return ret;
 }
 
+/* ??$cos@M@std@@YA?AV?$complex@M@0@ABV10@@Z */
+/* ??$cos@M@std@@YA?AV?$complex@M@0@AEBV10@@Z */
+complex_float* __cdecl complex_float_cos(complex_float *ret, const complex_float *c)
+{
+    ret->real = cos(c->real)*cosh(c->imag);
+    ret->imag = -sin(c->real)*sinh(c->imag);
+    return ret;
+}
+
+/* ??$sin@M@std@@YA?AV?$complex@M@0@ABV10@@Z */
+/* ??$sin@M@std@@YA?AV?$complex@M@0@AEBV10@@Z */
+complex_float* __cdecl complex_float_sin(complex_float *ret, const complex_float *c)
+{
+    ret->real = sin(c->real)*cosh(c->imag);
+    ret->imag = cos(c->real)*sinh(c->imag);
+    return ret;
+}
+
+/* ??$tan@M@std@@YA?AV?$complex@M@0@ABV10@@Z */
+/* ??$tan@M@std@@YA?AV?$complex@M@0@AEBV10@@Z */
+complex_float* __cdecl complex_float_tan(complex_float *ret, const complex_float *c)
+{
+    double denom = cos(2*c->real) + cosh(2*c->imag);
+    ret->real = sin(2*c->real) / denom;
+    ret->imag = sinh(2*c->imag) / denom;
+    return ret;
+}
+
 /* ??0?$_Complex_base@NU_C_double_complex@@@std@@QAE@ABN0@Z */
 /* ??0?$_Complex_base@NU_C_double_complex@@@std@@QEAA@AEBN0@Z */
 /* ??0?$_Complex_base@OU_C_ldouble_complex@@@std@@QAE@ABO0@Z */
@@ -1820,3 +1848,37 @@ complex_double* __cdecl complex_double_conj(complex_double *ret, const complex_d
     ret->imag = -c->imag;
     return ret;
 }
+
+/* ??$cos@N@std@@YA?AV?$complex@N@0@ABV10@@Z */
+/* ??$cos@N@std@@YA?AV?$complex@N@0@AEBV10@@Z */
+/* ??$cos@O@std@@YA?AV?$complex@O@0@ABV10@@Z */
+/* ??$cos@O@std@@YA?AV?$complex@O@0@AEBV10@@Z */
+complex_double* __cdecl complex_double_cos(complex_double *ret, const complex_double *c)
+{
+    ret->real = cos(c->real)*cosh(c->imag);
+    ret->imag = -sin(c->real)*sinh(c->imag);
+    return ret;
+}
+
+/* ??$sin@N@std@@YA?AV?$complex@N@0@ABV10@@Z */
+/* ??$sin@N@std@@YA?AV?$complex@N@0@AEBV10@@Z */
+/* ??$sin@O@std@@YA?AV?$complex@O@0@ABV10@@Z */
+/* ??$sin@O@std@@YA?AV?$complex@O@0@AEBV10@@Z */
+complex_double* __cdecl complex_double_sin(complex_double *ret, const complex_double *c)
+{
+    ret->real = sin(c->real)*cosh(c->imag);
+    ret->imag = cos(c->real)*sinh(c->imag);
+    return ret;
+}
+
+/* ??$tan@N@std@@YA?AV?$complex@N@0@ABV10@@Z */
+/* ??$tan@N@std@@YA?AV?$complex@N@0@AEBV10@@Z */
+/* ??$tan@O@std@@YA?AV?$complex@O@0@ABV10@@Z */
+/* ??$tan@O@std@@YA?AV?$complex@O@0@AEBV10@@Z */
+complex_double* __cdecl complex_double_tan(complex_double *ret, const complex_double *c)
+{
+    double denom = cos(2*c->real) + cosh(2*c->imag);
+    ret->real = sin(2*c->real) / denom;
+    ret->imag = sinh(2*c->imag) / denom;
+    return ret;
+}
diff --git a/dlls/msvcp90/msvcp90.spec b/dlls/msvcp90/msvcp90.spec
index 5e53c6d1220..3022505b178 100644
--- a/dlls/msvcp90/msvcp90.spec
+++ b/dlls/msvcp90/msvcp90.spec
@@ -368,12 +368,12 @@
 @ cdecl -arch=win64 ??$conj@N@std@@YA?AV?$complex@N@0@AEBV10@@Z(ptr ptr) complex_double_conj
 @ cdecl -arch=win32 ??$conj@O@std@@YA?AV?$complex@O@0@ABV10@@Z(ptr ptr) complex_double_conj
 @ cdecl -arch=win64 ??$conj@O@std@@YA?AV?$complex@O@0@AEBV10@@Z(ptr ptr) complex_double_conj
-@ stub -arch=win32 ??$cos@M@std@@YA?AV?$complex@M@0@ABV10@@Z
-@ stub -arch=win64 ??$cos@M@std@@YA?AV?$complex@M@0@AEBV10@@Z
-@ stub -arch=win32 ??$cos@N@std@@YA?AV?$complex@N@0@ABV10@@Z
-@ stub -arch=win64 ??$cos@N@std@@YA?AV?$complex@N@0@AEBV10@@Z
-@ stub -arch=win32 ??$cos@O@std@@YA?AV?$complex@O@0@ABV10@@Z
-@ stub -arch=win64 ??$cos@O@std@@YA?AV?$complex@O@0@AEBV10@@Z
+@ cdecl -arch=win32 ??$cos@M@std@@YA?AV?$complex@M@0@ABV10@@Z(ptr ptr) complex_float_cos
+@ cdecl -arch=win64 ??$cos@M@std@@YA?AV?$complex@M@0@AEBV10@@Z(ptr ptr) complex_float_cos
+@ cdecl -arch=win32 ??$cos@N@std@@YA?AV?$complex@N@0@ABV10@@Z(ptr ptr) complex_double_cos
+@ cdecl -arch=win64 ??$cos@N@std@@YA?AV?$complex@N@0@AEBV10@@Z(ptr ptr) complex_double_cos
+@ cdecl -arch=win32 ??$cos@O@std@@YA?AV?$complex@O@0@ABV10@@Z(ptr ptr) complex_double_cos
+@ cdecl -arch=win64 ??$cos@O@std@@YA?AV?$complex@O@0@AEBV10@@Z(ptr ptr) complex_double_cos
 @ stub -arch=win32 ??$cosh@M@std@@YA?AV?$complex@M@0@ABV10@@Z
 @ stub -arch=win64 ??$cosh@M@std@@YA?AV?$complex@M@0@AEBV10@@Z
 @ stub -arch=win32 ??$cosh@N@std@@YA?AV?$complex@N@0@ABV10@@Z
@@ -464,12 +464,12 @@
 @ cdecl -arch=win64 ??$real@N@std@@YANAEBV?$complex@N@0@@Z(ptr) complex_double_real
 @ cdecl -arch=win32 ??$real@O@std@@YAOABV?$complex@O@0@@Z(ptr) complex_double_real
 @ cdecl -arch=win64 ??$real@O@std@@YAOAEBV?$complex@O@0@@Z(ptr) complex_double_real
-@ stub -arch=win32 ??$sin@M@std@@YA?AV?$complex@M@0@ABV10@@Z
-@ stub -arch=win64 ??$sin@M@std@@YA?AV?$complex@M@0@AEBV10@@Z
-@ stub -arch=win32 ??$sin@N@std@@YA?AV?$complex@N@0@ABV10@@Z
-@ stub -arch=win64 ??$sin@N@std@@YA?AV?$complex@N@0@AEBV10@@Z
-@ stub -arch=win32 ??$sin@O@std@@YA?AV?$complex@O@0@ABV10@@Z
-@ stub -arch=win64 ??$sin@O@std@@YA?AV?$complex@O@0@AEBV10@@Z
+@ cdecl -arch=win32 ??$sin@M@std@@YA?AV?$complex@M@0@ABV10@@Z(ptr ptr) complex_float_sin
+@ cdecl -arch=win64 ??$sin@M@std@@YA?AV?$complex@M@0@AEBV10@@Z(ptr ptr) complex_float_sin
+@ cdecl -arch=win32 ??$sin@N@std@@YA?AV?$complex@N@0@ABV10@@Z(ptr ptr) complex_double_sin
+@ cdecl -arch=win64 ??$sin@N@std@@YA?AV?$complex@N@0@AEBV10@@Z(ptr ptr) complex_double_sin
+@ cdecl -arch=win32 ??$sin@O@std@@YA?AV?$complex@O@0@ABV10@@Z(ptr ptr) complex_double_sin
+@ cdecl -arch=win64 ??$sin@O@std@@YA?AV?$complex@O@0@AEBV10@@Z(ptr ptr) complex_double_sin
 @ stub -arch=win32 ??$sinh@M@std@@YA?AV?$complex@M@0@ABV10@@Z
 @ stub -arch=win64 ??$sinh@M@std@@YA?AV?$complex@M@0@AEBV10@@Z
 @ stub -arch=win32 ??$sinh@N@std@@YA?AV?$complex@N@0@ABV10@@Z
@@ -482,12 +482,12 @@
 @ stub -arch=win64 ??$sqrt@N@std@@YA?AV?$complex@N@0@AEBV10@@Z
 @ stub -arch=win32 ??$sqrt@O@std@@YA?AV?$complex@O@0@ABV10@@Z
 @ stub -arch=win64 ??$sqrt@O@std@@YA?AV?$complex@O@0@AEBV10@@Z
-@ stub -arch=win32 ??$tan@M@std@@YA?AV?$complex@M@0@ABV10@@Z
-@ stub -arch=win64 ??$tan@M@std@@YA?AV?$complex@M@0@AEBV10@@Z
-@ stub -arch=win32 ??$tan@N@std@@YA?AV?$complex@N@0@ABV10@@Z
-@ stub -arch=win64 ??$tan@N@std@@YA?AV?$complex@N@0@AEBV10@@Z
-@ stub -arch=win32 ??$tan@O@std@@YA?AV?$complex@O@0@ABV10@@Z
-@ stub -arch=win64 ??$tan@O@std@@YA?AV?$complex@O@0@AEBV10@@Z
+@ cdecl -arch=win32 ??$tan@M@std@@YA?AV?$complex@M@0@ABV10@@Z(ptr ptr) complex_float_tan
+@ cdecl -arch=win64 ??$tan@M@std@@YA?AV?$complex@M@0@AEBV10@@Z(ptr ptr) complex_float_tan
+@ cdecl -arch=win32 ??$tan@N@std@@YA?AV?$complex@N@0@ABV10@@Z(ptr ptr) complex_double_tan
+@ cdecl -arch=win64 ??$tan@N@std@@YA?AV?$complex@N@0@AEBV10@@Z(ptr ptr) complex_double_tan
+@ cdecl -arch=win32 ??$tan@O@std@@YA?AV?$complex@O@0@ABV10@@Z(ptr ptr) complex_double_tan
+@ cdecl -arch=win64 ??$tan@O@std@@YA?AV?$complex@O@0@AEBV10@@Z(ptr ptr) complex_double_tan
 @ stub -arch=win32 ??$tanh@M@std@@YA?AV?$complex@M@0@ABV10@@Z
 @ stub -arch=win64 ??$tanh@M@std@@YA?AV?$complex@M@0@AEBV10@@Z
 @ stub -arch=win32 ??$tanh@N@std@@YA?AV?$complex@N@0@ABV10@@Z