User manual

Trig Functions

Name ___________________________

Date ___________________________

EXAS

NSTRUMENTS

NCORPORATED

TI-30X ÙS: A Guide for Teachers

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

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

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 _______________________