Texas Instruments TI-30X - IIS Scientific Calculator - Page 16

© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X ÙS: A Guide for Teachers
12
Trig Functions
Name ___________________________
Date ___________________________
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
Ù
S, 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
Ù
S, 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 _______________________
5
4
3
BC
A