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Inverse Secant Through Cosine
## Formula
For $$|x|\ge1$$:
$$\sec^{-1}x=\cos^{-1}\left(\frac1x\right)$$
with the standard principal-value convention.
## Usage
- Used to convert inverse secant into inverse cosine.
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Inverse Secant Through Cosine
## Formula
For $$|x|\ge1$$:
$$\sec^{-1}x=\cos^{-1}\left(\frac1x\right)$$
with the standard principal-value convention.
## Usage
- Used to convert inverse secant into inverse cosine.
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