3 Answered Questions for the topic HELP ASAP!

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07/03/16

i got those wrong on my assasnment. 1) sin(2x)=v3/2 2) cos x/2=-v2/2 3) cos(3x)=v2/2 4) sin x/2=-1/2
i got those wrong on my assasnment. 1) sin(2x)=√3/2 2) cos x/2=-√2/2 3) cos(3x)=√2/2 4) sin x/2=-1/2
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Help Asap!

07/03/16

i got those wrong on my assasnment. 1) sin(2x)=v3/2 2) cos x/2=-v2/2 3) cos(3x)=v2/2 4) sin x/2=-1/2
I got those wrong on my assignment. 1) sin(2x)=√3/2 2) cos x/2=-√2/2 3) cos(3x)=√2/2 4) sin x/2=-1/2.It would be grate to show steps show i can see how it's done.Thanks.  
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Help Asap!

07/03/16

Can anyone do this step by step so it will be easier for me to figure out. solve each equation for x=x=2pi. 1.)cos(2x)+cosx=0
Can anyone do this step by step so it will be easier for me to figure out. solve each equation for x≤x≤2pi. 1.)cos(2x)+cosx=0. 2)cos(2x)+sinx=0. 3)cos^2x=sin^2(x/2)
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