SOURCE: casio fx-82ES scientific calculator
change the mode to stat and then start operating it in statistical mode
SOURCE: how to use the cosine,tangent etc functions of
Hello,
1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad]
2. Press the key for the function COS, SIN, or TAN
[COS] displays Cos(
3.Enter the angle 12 deg Screen shows cos(12
Close the right parenthesis ) Screen shows cos(12)
4.Press [=] Screen displays 0.9781
If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)
arcsin [SHIFT][SIN] (sin^-1)
actan [SHIFT][TAN] (tan^-1)
You have to know the principal domain for the inverse trigonometric functions (see any book on trigonometry) to understand the results.
Hope it helps.
SOURCE: casio fx-82es significant figures
it should...
it can be found by SHIFT then MODE then SCI is the one you want to choose
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