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Jul 5, 2013
x= 300 + 360k
x= 180 + 360k All check out except for 180. When plugged into the original equation cos(180)=-1 and sin(180/2)= 1 -1 does not equal 1
algie2
On 7/05/13, Stevo wrote: > Here's my problem. I understand how to solve trig equations > and as all math teachers do, I check my work. When I solve > for all solutions to the equation: cos(x)= sin(x/2) I get > x= 60 + 360k > > x= 300 + 360k > > x= 180 + 360k All check out except for 180. When plugged > into the original e...See More
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