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25-09-2021
Mathematics

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use the unit circle to find the exact value of the trig function cos(210)

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surjithayer10otahza surjithayer10otahza

25-09-2021

Answer:

Step-by-step explanation:

cos(210)=cos(180+30)=-cos 30

[tex]=-\frac{\sqrt{3} }{2}[/tex]

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