Trigonometric functions, Continued) – Sharp EL-9900 User Manual
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Put the calclator in radian mode by pressing 2ndF SETUP B 2 .
1. Find sin 2.1.
STEP 1:
Press to access the calculation screen.
STEP 2:
Enter sin 2.1 by pressing MATH
Α 1 2
.
1 .
STEP 3:
Calculate by pressing the ENTER key.
The answer is .8632
2. Find cos (
-
1.7).
STEP 1:
Enter 3 cos (-1.7) by pressing 3
MATH
Α 2
(−) 1
.
7 .
STEP 2:
Calculate by pressing the ENTER key.
The answer is -.3865
3. Find tan 0.
STEP 1:
Enter tan 0 by pressing MATH
Α 3
0 .
STEP 2:
Calculate by pressing the ENTER key.
The answer is zero.
TRIGONOMETRIC FUNCTIONS
(continued)
Ч
+ –
ч