How do you calculate $arctan (- 1)$ $arctan(-1)$ ?

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How do you calculate $arctan (- 1)$ $arctan(-1)$ ?

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Answer 1 · 2015-07-05T00:37:21

Find arctan (-1)

Explanation:

tan x = - 1 . Trig table gives -> arc $x = \frac{3 π}{4}$ $x = (3pi)/4$ or 135 deg (Quadrant II)
Extended answer: $x = \frac{3 π}{4} + K π$ $x = (3pi)/4 + Kpi$

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How do you calculate $arctan (- 1)$ $arctan(-1)$ ?

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How do you calculate $arctan (- 1)$ $arctan(-1)$ ?