Question 1013449
<pre>
{{{cos(theta) * csc(theta) * tan(theta) * sin(theta)}}}

{{{cos(theta) * (1/sin(theta)) * (sin(theta)/cos(theta)) * sin(theta)}}}

{{{(cos(theta)/1) * (1/sin(theta)) * (sin(theta)/cos(theta)) * (sin(theta)/1)}}}

Cancel cosines

{{{(cross(cos(theta))/1) * (1/sin(theta)) * (sin(theta)/cross(cos(theta))) * (sin(theta)/1)}}}

Cancel sines

{{{(cross(cos(theta))/1) * (1/cross(sin(theta))) * (cross(sin(theta))/cross(cos(theta))) * (sin(theta)/1)}}}

{{{sin(theta)}}}

Edwin</pre>