Texas Instruments TI-30X IIS User Manual page 19

Trig Functions
Problems
1. Find the trigonometric ratios for the triangle. Round to the nearest
hundredth. (Use % ‚ for rounding.)
a. sin C
b. cos C
c. tan C
d. sin A
e. cos A
f. tan A
2. Using the TI-30X ÖS, find the value of each ratio. Round to the nearest ten
thousandth.
a. sin 71º
b. tan 31º
c. cos 25º
3. Using the TI-30X ÖS, find the measure of each angle. Round to the nearest
degree.
a. sin B = 0.4567
b. cos A =0.6758
c. tan C = 5.83
© 1999 T I I
EXAS NSTRUMENTS NCORPORATED
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TI-30X ÙS: A Guide for Teachers
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A
3
B
5
C
4
12