| 2 items are filed under this topic. 
 |  |  |  |  |  |  
  |  |  |  |  
   | gcd(a^2 + b^2, a + b) | 2020-01-19 |  
  |  | From Roger: I am stuck with this problem:  find the gcd(a^2+b^2, a+b), where a & b are relatively prime integers not both zero.
 Answered by Penny Nom.
 |  
  |  |  
  |  |  
  |  |  |  |  
   | cos (3pi/2 -x) | 2019-11-20 |  
  |  | From sam: 1. express the following as a trigonometric function of angle x for cos (3pi/2 -x) 
the answer in the textbook is -sin x but i am unsure of the process to get the answer.
 Answered by Penny Nom.
 |  
  |  |  
  |  |  |