Question 708752
<pre>
 
          Def.   Period:  Domain:                         Range:     Even/odd
   sin &#415;  y/r      2&#960;     (-&#8734;,+&#8734;)                         [-1, 1]      odd
2. csc &#415;  r/y      2&#960;    {&#415;|&#415;&#8800;n&#960;}, n an integer        (-&#8734;,-1]U[1,+&#8734;)  odd
3. cos &#415;  x/r      2&#960;     (-&#8734;,+&#8734;)                         [-1, 1]      even    
4. sec &#415;  r/x      2&#960;   {&#415;|&#415;&#8800;(2n+1)&#960;/2}, n an integer  (-&#8734;,-1]U[1,+&#8734;)  even
5. tan &#415;  y/x       &#960;   {&#415;|&#415;&#8800;(2n+1)&#960;/2}, n an integer     (-&#8734;,+&#8734;)      odd     
6. cot &#415;  x/y       &#960;    {&#415;|&#415;&#8800;n&#960;}, n an integer           (-&#8734;,+&#8734;)      odd

{{{matrix(1,3,y,""="",sin(x))}}}{{{graph(200,200,-10,10,-10,10,sin(x))}}}
{{{matrix(1,3,y,""="",csc(x))}}}{{{graph(200,200,-10,10,-10,10,1/sin(x))}}}
{{{matrix(1,3,y,""="",cos(x))}}}{{{graph(200,200,-10,10,-10,10,cos(x))}}}
{{{matrix(1,3,y,""="",sec(x))}}}{{{graph(200,200,-10,10,-10,10,1/cos(x))}}}
{{{matrix(1,3,y,""="",tan(x))}}}{{{graph(200,200,-10,10,-10,10,tan(x))}}}
{{{matrix(1,3,y,""="",cot(x))}}}{{{graph(200,200,-10,10,-10,10,1/tan(x))}}}

Edwin</pre>