HP 9g Graphing Calculator - Manual (Page 45)

E-45
[ 2nd ] [ HYP ] [ cos ] 1.5
[ ] [ + ] 2 [
]
13 sinh –1 7 = 2.644120761
[ 2nd ] [ HYP ] [ 2nd ] [ sin –1 ]
7 [ ]
Example 30
If x = 5 and y = 30, what are r and ? Ans : r = 30.41381265, =
80.53767779 o
[ 2nd ] [ R P ]
[ ] 5 [ ALPHA ] [ ] 30
[ ]
[ 2nd ] [ R P ] [ ]
[ ] 5 [ ALPHA ] [ ] 30
[ ]
14 If r = 25 and = 56 o what are x and y? Ans : x = 13.97982259, y =
20.72593931