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HP 9g - Page 45

HP 9g
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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

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