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Oh, what a happy little question! To put arcsec in a calculator, you simply press the "2nd" or "Shift" key on your calculator, then find the "sec" button. This will allow you to calculate the arcsec of an angle and create beautiful mathematical landscapes. Just remember, there are no mistakes, only happy little calculations!
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Rene- Divide "1" by the argument "z" of the arcsec(z) function. Note, that "z" is equal to secant(angle) and 1/z is cosine (angle).
- For example, if arcsec(4) then cosine is "1/4" value or 0.25.
- Using a calculator, calculate the arccosine (arccos) function of "1/z" to get arcsec(z).
Angle=arcsec(z)= arccos(1/z).
In the example, arcsec(4)= arccos(0.25)=75.52 degrees.
- Calculate arcsecant if the function is given as arcsec(sec(Z)) e.g. arcsec(sec(45)). In such a case you do not need to calculate the secant value and then follow Steps 1 and 2. Instead, get an instant answer: arcsec equals Z. In this example, arcsecant of sec(45) is 45.
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