Texas Instruments TI-73 EXPLORER 사용자 설명서

Chapter 11: Trigonometry     

7311ENG.DOC   CH 11 Trigonometry, English   Julie Hewlett   Revised: 05/26/98 11:12 AM   Printed: 05/19/99 9:02

AM   Page 213 of 12

In 

 Angle mode, calculate tan

-1

(1). Check your answer.

1. Select the 

 Angle

mode.

. # # b

2. Return to the Home screen,

and clear it, if desired.

- l :

3. Enter 

.

- u

E b

4. Using the result, enter

.

- u

E b

In Radian mode, calculate cos(p/4).

1. Select the 

 Angle

mode.

. # # " b

2. Return to the Home screen,

and clear it, if desired.

- l :

3. Enter 

p

.

- u

- „ F

E b

³

³

This confirms the

previous result.