good places to use SinCos()

<packages\fcl-pdf\src\fppdf.pp>

		< 4106>:       a1 := Cos(rad); b1 := -Sin(rad);
		< 4107>:       c1 := Sin(rad); d1 := a1;
		< 4258>:       a1 := Cos(rad); b1 := -Sin(rad);
		< 4259>:       c1 := Sin(rad); d1 := a1;

<packages\numlib\src\roo.pas>

		<  111>:               pz^[k].Init(r*cos(w), r*sin(w));
		<  130>:               pz^[k].Init(r*cos(w), r*sin(w));
		<  147>:           pz^[j+1].Init(r*cos(w), r*sin(w))

<packages\numlib\src\spe.pas>

		<  399>:       cx:=cos(g)*y; sx:=-sin(g)*y*8/t;
		<  477>:       cx:=cos(g)*y; sx:=-sin(g)*y*8/t;
		<  742>:       cx:=cos(g)*y*8/x; sx:=sin(g)*y;
		<  828>:       cx:=cos(g)*y*8/x; sx:=sin(g)*y;

<packages\rtl-extra\src\inc\ucomplex.pp>

       cexp.re := expz * cos(z.im);
       cexp.im := expz * sin(z.im);
...
       ccos.re := cos(z.re) * cosh(z.im);
       ccos.im := - sin(z.re) * sinh(z.im);
...
       cch.re := cosh(z.re) * cos(z.im);
       cch.im := sinh(z.re) * sin(z.im);
...
       csh.re := sinh(z.re) * cos(z.im);
       csh.im := cosh(z.re) * sin(z.im);