SOLUTION: 3. Express 3cos(x°)+5sin(x°) in the form kcos(x°-a°), where k>0 and 0≤a≤360 Can you provide full working with the solutions please.

Algebra ->  Equations -> SOLUTION: 3. Express 3cos(x°)+5sin(x°) in the form kcos(x°-a°), where k>0 and 0≤a≤360 Can you provide full working with the solutions please.      Log On


   



Question 388615: 3. Express 3cos(x°)+5sin(x°) in the form kcos(x°-a°), where k>0 and 0≤a≤360
Can you provide full working with the solutions please.

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
. Here k+=+sqrt%2834%29+=+sqrt%283%5E2+%2B+5%5E2%29,and alpha+=+tan%5E%28-1%29%285%2F3%29.