Topic: Trig Functions with a Calculator and
Topic: Trig Functions with a Calculator and
Simple Trig Equations
Angle Conversions Using a Calculator
Label the approximate decimal value of the quadrantal angles in radians. Round radians to three decimal places.
Determine the quadrant for each angle in radians.
1. 5 2. .487
3. 2.5 4. -3.5
Convert from degrees to radians.
5. 155˚ 6. -72˚
Convert from radians to degrees.
Round to the nearest degree.
7. 5.8 8. .324
Finding Values of Trig Functions Using a Calculator
The Basic Functions - Sin θ, Cos θ, and Tan θ:
9. sin 30º = _______ 10. cos 47.2º = ________
11. tan [pic] = ________ 12. cos [pic] = ________
13. tan [pic] = ________ With a calculator.
tan [pic] = ________ Without a calculator.
The Reciprocal Functions - Csc(, Sec(, and Cot(
14. sec 24º = ____________ = ________
15. cot (-206.7º) = ____________ = ________
16. csc[pic] = ____________ = ________
17. cot [pic] = _________ = _________ With a calculator.
cot [pic] = ________ Without a calculator.
Solving Simple Trig Equations (Non-Calculator)
Find values of ( that satisfy the equation for 0º ( ( ( 360º and
0 ( ( ( 2(. List your results in degrees and radians. Do not use a calculator.
18. sin( = [pic]
19. cot( = [pic]
20. cos θ = -1
-----------------------
N 2-1
N 2-1
IMPORTANT NOTE: Always put your calculator in the correct MODE before finding any trig values in your calculator.
Complete the table below:
|Radians |Degrees |
|1 | |
|2 | |
|3 | |
|4 | |
|5 | |
|6 | |
Steps:
1. Ignore the sign of the answer and find the reference angle, α, so that
Sin α = [pic]
2. Place α in the correct quadrants for the sign of the answer.
Note: Each trig function has two positive quadrants and two negative quadrants, so there should be two answers unless θ is quadrantal. This means that trig functions are
NOT _________________ functions.
N 2-1
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- 6 trig functions calculator triangle
- 6 trig functions calculator
- derivatives of trig functions definition
- inverse trig functions derivative
- derivative of trig functions chart
- derivative of trig functions table
- derivatives of trig functions examples
- integrals of trig functions pdf
- trig functions cheat sheet
- basic trig functions chart
- graphing trig functions phase shift
- derivative of trig functions calculator