SOLUTION: help verify (2cos theta+3 sin theta)^2 + (3cos theta - 2sin theta)^2 =13

Algebra ->  Trigonometry-basics -> SOLUTION: help verify (2cos theta+3 sin theta)^2 + (3cos theta - 2sin theta)^2 =13      Log On

 

 

 

 

 

 

 

 

Edwin