Find the Exact Value arctan(1)

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Trigonometry

$\tan^{-1} (1)$

The exact value of $\tan^{-1} (1)$ is $\frac{π}{4}$ .

$\frac{π}{4}$

The result can be shown in multiple forms.

Exact Form:

$\frac{π}{4}$

Decimal Form:

$0.78539816 \dots$

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