Question 1049506
<pre> {{{(2cos(theta)^""+3 sin(theta))^2 + (3cos(theta)^"" - 2sin(theta))^2}}}{{{""=""}}}

 {{{4cos^2(theta)+12cos(theta)sin(theta)+9sin^2(theta) + 9cos^2(theta) - 12cos(theta)sin(theta)+4sin^2(theta)}}}{{{""=""}}}

 {{{4cos^2(theta)+cross(12cos(theta)sin(theta))+9sin^2(theta) + 9cos^2(theta) - cross(12cos(theta)sin(theta))+4sin^2(theta)}}}{{{""=""}}}

 {{{4cos^2(theta)+9sin^2(theta) + 9cos^2(theta)+4sin^2(theta)}}}{{{""=""}}}

 {{{13cos^2(theta)+13sin^2(theta)}}}{{{""=""}}}

 {{{13(cos^2(theta)^""+13sin^2(theta))}}}{{{""=""}}}

 {{{13(1)}}}{{{""=""}}}

 {{{13}}}

Edwin</pre>