Casio fx-9860G SD - Manual (Page 86)

20050401
k k k k 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
π
cos (–– rad) = 0.5 !m(SET UP)cccccc
3
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
° =
1
= 2
!m(SET UP)cccccc
sin 30
° 1(Deg)J
1/s30w
$1cs30w
sin -1 0.5 = 30
° !m(SET UP)cccccc
( x when sin x = 0.5) 1(Deg)J
!s(sin
–1 )0.5* 2 w
2-4-4
Function Calculations
* 1 * can be omitted. * 2 Input of leading zero is not necessary.
π
(90
° = ––– radians = 100 grads)
2