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Principal Value of $$\tan^{-1}1$$
## Formula
$$\tan^{-1}1=\frac\pi4$$
## Usage
- Used for direct evaluation of standard inverse trigonometric values.
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Principal Value of $$\tan^{-1}1$$
## Formula
$$\tan^{-1}1=\frac\pi4$$
## Usage
- Used for direct evaluation of standard inverse trigonometric values.
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