Casio SERIES FX-9860G - Manual (Page 87)

20070201
k Trigonometric and Inverse Trigonometric Functions
• Be sure to set the angle unit before performing trigonometric function and inverse
trigonometric function calculations.
• Be sure to specify Comp for Mode in the Setup screen.
Example Operation
sin 63° = 0.8910065242 !m(SET UP)cccccc
1(Deg)J
s63w
cos (
π
3
rad) = 0.5
!m(SET UP)cccccc
2(Rad)J
c(!E( π)/3)w
c$!E( π)c3w
tan (– 35gra) = – 0.6128007881 !m(SET UP)cccccc
3(Gra)J
t-35w
2 • sin 45°
× cos 65° = 0.5976724775 !m(SET UP)cccccc
1(Deg)J
2*
s45*c65w* 1
cosec 30° =
sin30°
1
= 2
!m(SET UP)cccccc
1(Deg)J
1/
s30w
$1cs30w
sin –1 0.5 = 30°
( x when sin x = 0.5)
!m(SET UP)cccccc
1(Deg)J
!s(sin
–1 )0.5* 2 w
π
(90° = ––– radians = 100 grads)
2
π
(90° = ––– radians = 100 grads)
2
2-4-4
Function Calculations
* 1 * can be omitted. * 2 Input of leading zero is not necessary.