[ MODE ] [ MODE ] | DEG RAD GRAD | ||
| |||
| 1 | 2 | 3 |
|
|
|
|
1 [ sin ] 30 [ = ] | sin 30 |
| DEG |
|
| ||
|
|
| 0.5 |
|
|
|
|
Example 25
2π
cos ( 3 rad ) = – 0.5
[ MODE ] [ MODE ] | DEG RAD GRAD | ||
| |||
| 1 | 2 | 3 |
|
|
|
|
2 [ cos ] [ ( ] 2 [ 2nd ] [ π ] [ ⎟ ] 3 [ = ] |
| RAD |
|
| cos ( 2 | π / 3 | |
|
|
| – 0.5 |
|
|
|
|
Example 26
sin
[ MODE ] [ MODE ] | DEG RAD GRAD | ||
| |||
| 1 | 2 | 3 |
|
|
|
|
1 [ 2nd ] [ sin | sin | 0.5 | DEG |
| |||
|
|
| 30. |
|
|
|
|
Example 27
cosh1.5 + 2 = 4.352409615
[ 2nd ] [ HYP ] [ cos ] 1.5 [ + ] 2 [ = ] | DEG |
|
| cosh 1.5 + 2 | |
| 4.352409615 |
|
|
|
|
Example 28
sinh
[ 2nd ] [ HYP ] [ 2nd ] [ sin | sinh | DEG |
| ||
| 2.644120761 | |
|
|
|
Example 29
12.755 = 12 45 18
12.755 [ = ] [ 2nd ] [ | ] | 12.755 | DEG |
|
| ||
|
| 12 45 18 | |
Example 30
2 45 10.5 = 2.752916667
2 [ | ] 45 [ | ] 10.5 [ | ] [ = ] |
| DEG |
|
|
|
|
| 2 | ° 45 ° 10.5 ° | |
|
|
|
|
| 2 45 10.5 |
|
[ | ] |
|
|
| DEG |
|
|
|
|
| 2 | ° 45 ° 10.5 ° | |
|
|
|
|
| 2.752916667 |
|
|
|
|
|
|
|
|
Example 31
If x = 5 , y = 30, what are r , θ ° Ans : r = 30.41381265 θ = 80.53767779 °
[ ALPHA ] [ Pol ( ] 5 [ , ] 30 [ = ] |
| DEG |
|
| Pol ( 5, 30 | ||
|
| 30.41381265 |
|
|
|
|
|
[ 2nd ] [ RCL ] [ F ] | F = | DEG | |
| 80.53767779 | ||
|
|
| |
|
|
|
|
Example 32
If r = 25 , θ = 56°, what are x , y ? Ans : x = 13.97982259 y = 20.72593931
[ ALPHA ] [ Rec ( ] 25 [ , ] 56 [ = ] |
| DEG |
|
| Rec ( 25, 56 | ||
|
| 13.97982259 |
|
[ 2nd ] [ RCL ] [ F ] | F = | DEG | |
| 20.72593931 | ||
|
|
| |
|
|
|
|
Example 33
7 ! = 840 [(7 – 4)]!
7 [ 2nd ] [ nPr ] 4 [ = ] | 7 lP 4 | DEG |
| ||
|
| 840. |
|
|
|
Example 34
7 ! | = 35 |
|
4 ![(7 – 4)]!
7 [ 2nd ] [ nCr ] 4 [ = ] | 7 lC 4 | DEG |
| ||
|
| 35. |
4
