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Calculate the following trigonometric quantities:

$\textrm{cos}\left ( \frac{\pi }{6} \right )$
$\textrm{tan}\left ( 45 \right )$
$\textrm{sin}\left ( \pi \right )+\textrm{cos}\left ( 45 \right )$

MATLAB inputs and outputs are as follows:

cos(pi/6) (ans=0.8660)
tan(45*pi/180) (ans = 1.0000)
sin(pi)+cos(45*pi/180) (ans = 0.7071)

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