How do you find the exact value of $tan (pi/3) +cos pi$ ?

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Answer 1 · 2017-02-28T14:47:17

$sqrt3 - 1$

Use trig table of special arcs:
$cos pi = - 1$
$tan (pi/3) = sqrt3$
$tan (pi/3) + cos pi = sqrt3 - 1$

How do you find the exact value of tan (pi/3) +cos pi tan (pi/3) +cos pi?