It is a trigonometric function, equivalent to the sine of an angle divided by the cosine of the same angle.
The cotangent is the reciprocal of the tangent, so simply calculate, on your scientific calculator, 1 / tan(68).
It means inverse, and performs the opposite of the given operation. For example, if you want inverse of tangent, you will use that inv button.
"Rise per run" or something like that is the tangent function. Use your scientific calculator to calculate tan 30. Be sure to set your calculator to degrees first. Then - since you want the result in inches per foot - multiply this tangent by 12.
You cannot.
You would have to use its opposite tangent, tan-1on your scientific calculator. It would be tan-1(opposite side/adjacent side), and you must have the opposite and adjacent sides of the angle you are trying to solve.
Cos is short for Cosine ( Complementary Sine) Similrly Sin is short for Sine Tan is short for Tangent.
A scientific calculator typically has functions for trigonometric calculations (like sine, cosine, and tangent), logarithmic functions, and the ability to handle exponents and roots. It often includes a dedicated button for pi (π) and can perform calculations in different modes (such as degrees and radians). If your calculator has a display that shows multiple lines or allows for more complex expressions, it's likely a scientific calculator. You can also check the user manual or model specifications for confirmation.
Given only the measure of an angle, use a scientific calculator or a book of mathematical tables (if you can find one!). There are infinite series but they are not particularly easy to work with.
TAN on your calculator means TANGENT. In Pythagoras Theorem. Try googling about Pythagoras Theorem and it will answer your questions. Hope this helps.
First make sure your calculator is in 'Degree Mode (D)'. Then using the 'Inverse' of 'Sin' , shown as 'ArcSin' or ' Sin^(-1)' . enter '0.5', followed by '=' . The answer should be '30' ( 30 degrees).
Use a calculator. There is no simple way to calculate it.
A Scientific Calculator