Re: [obm-l] trigonometria

[Eder]

6x/pi = 1 =>x=pi/6 =>3x=pi/2 =>cos(pi/2) = 0 ----- Original Message ----- From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, January 02, 2003 7:15 PM Subject: [obm-l] trigonometria Porque se a tg  (9pi/4)=6x/pi, então cos 3x é zero?