Trigonometry - Texas Instruments TI-30X - IIS Scientific Calculator Teachers Manual

Trigonometry

Keys
1. @ calculates the tangent.
2. % \ calculates the inverse tangent.
3. ? calculates the cosine.
4. % [ calculates the inverse cosine.
5. > calculates the sine.
6. % Z calculates the inverse sine.
6
5
© 1999 T I I
EXAS NSTRUMENTS NCORPORATED
Notes
The examples on the transparency masters
assume all default settings.
Before starting a trigonometric
calculation, be sure to select the
appropriate angle mode setting (degree,
radian, or gradient—See Chapter 16,
Angle Settings and Conversions). The
calculator interprets values according to
the current angle-unit mode setting.
E ends a trig function.
2
1
4
3
TI-30X ÙS: A Guide For Teachers
13
81