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- where x is any real number.
- SECH(), returns the inverse hyperbolic secant of a number.
- This function gives the hyperbolic Secant of 'x',
- It is also called as Circular function.
- SECH is the reciprocal of COSH function.
- SECH(x)= i.e, or SEC(iz). where 'i' is the imaginary unit and
- Also relation between Hyperbolic & Trigonometric function is &
- SECH(-x) = SECH(x)
- x is any real number.