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How do you evaluate $sin((2pi)/3)$ ?

1 Answer

May 5, 2016

$sin((2pi)/3)=color(green)(sqrt(3)/2)$

Explanation:

enter image source here
since $sin(theta)$ is defined as the $("opposite side")/("hypotenuse")$ for an angle $theta$

$color(white)("XXX")sin((2pi)/3)=sqrt(3)/2$ (as can be seen form the diagram above)

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