Inverse Secant and Cosecant Relation

Rarely Tested

Inverse Secant and Cosecant Relation

## Formula

$$\sec^{-1}x=\cosec^{-1}\left(\frac{|x|}{\sqrt{x^2-1}}\right)$$

for:

$$|x|>1$$

## Usage

- Used to transform inverse secant expressions into inverse cosecant form.

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