Need help on trigonometry

• DrTech

  11 Nov 05, 15:12

  A maths... my friend just asked me a question... the paper is from Anderson's Secondary
  
  Question goes like this,
  
  sin(x+30) = 3cos(x+30)
  
  find the values of x
• Vel Vel

  11 Nov 05, 15:17

  x=41.57
• DrTech

  11 Nov 05, 15:19

  yeah... i got the answers... 41.6 and 221.6... but i dunno/forgot the process in doing... I got the answers from graphmatica...
• Ah Cek

  11 Nov 05, 15:21

  ...ok, let's continue line by line
  
  sin(x+30) = 3cos(x+30)
  
  tan(x+30)=3
  
  ....
• DrTech

  11 Nov 05, 15:25

  Originally posted by Ah Cek:

  ...ok, let's continue line by line
  
  sin(x+30) = 3cos(x+30)
  
  tan(x+30)=3
  
  ....

  OH WTF...! I FEEL DUMB!!!
  
  Thanks...