Homework Help: trig

Posted by Libby on Sunday, May 23, 2010 at 8:37pm.

Find all values of [theta] in the interval 0°<=X<= 360° that satisfy the equation cos2[theta]-cos[theta]=0

trig - bobpursley, Sunday, May 23, 2010 at 8:43pm
costheta(costheat-1)=0
costheta=0

or costheta=1

what satisfies that

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