How do you find the angle A if you have $tanA = 1.0$ ?

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Answer 1 · 2015-04-30T19:17:15

$tan(A) = 1.0$
is indicative of a standard triangle with a reference angle of $pi/4$

If we limit ourselves to the range $[0,2pi)$
the angle will be either
$pi/4$
or
$5pi/4$
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How do you find the angle A if you have tanA = 1.0tanA = 1.0?