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Example 25, Example 26, Example 27 – CITIZEN SR-270II User Manual

Page 11: Example 28, Example 29, Example 30, Example 31, Example 32, Example 33, Example 34

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4

[ MODE ] [ MODE ]

DEG RAD GRAD

1

2

3

1 [ sin ] 30 [ = ]

DEG

sin 30

0.5

Example 25

cos (

3

2

π

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

-1

0.5

= 30 Deg.

[ MODE ] [ MODE ]

DEG RAD GRAD

1

2

3

1 [ 2nd ] [ sin

–1

] 0.5 [ = ]

DEG

sin

–1

0.5

30.

Example 27

cosh1.5 + 2 = 4.352409615

[ 2nd ] [ HYP ] [ cos ] 1.5 [ + ] 2 [ = ]

DEG

cosh 1.5 + 2

4.352409615

Example 28

sinh

-1

7

= 2.644120761

[ 2nd ] [ HYP ] [ 2nd ] [ sin

–1

] 7 [ = ]

DEG

sinh

–1

7

2.644120761

Example 29

12.755 = 12

45

18

12.755 [ = ] [ 2nd ] [

]

DEG

12.755

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 ]

DEG

F =

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 ]

DEG

F =

20.72593931

Example 33

840

!

4)]

[(7

!

7

=

7 [ 2nd ] [ nPr ] 4 [ = ]

DEG

7 lP 4

840.

Example 34

35

!

4)]

[(7

!

4

!

7

=

7 [ 2nd ] [ nCr ] 4 [ = ]

DEG

7 lC 4

35.