Watch » 3 years agoKhan Academy, practice this lesson yourself on KhanAcademy.
Help, you can enter an expression such as 3/2 4 123).
Enter your expression and click on Evaluate.
Watch » 3 years agoMath Meeting, learn how to simply exponents using all of the properties of exponents.
From table below you can notice, that sech is not supported, windows xp service pack iso but you can still enter it using identity sech(x)1/cosh(x).