Coterminal angles
Try reviewing these fundamentals first
Nope, got it.
That's it, no more lessons
Nope, got it.
That's it, no more lessons
Still don't get it?
Nope, I got it.
Still don't get it?
Review these basic concepts…
Nope, I got it.
or
Start now and get better math marks!
Get Started NowStart now and get better math marks!
Get Started NowChapter 9.4 Playlist
Do better in math today
Chapter 9 Topics:

9.1
Converting between degrees and radians

9.2
Radian measure and arc length

9.3
Angle in standard position

9.4
Coterminal angles

9.5
Reference angle

9.6
Find the exact value of trigonometric ratios

9.7
ASTC rule in trigonometry (All Students Take Calculus)

9.8
Unit circle

9.9
Trigonometric ratios for angles in radians

9.10
Solving first degree trigonometric equations

9.11
Determining nonpermissible values for trig expressions

9.12
Use sine ratio to calculate angles and side (Sin = $\frac{o}{h}$ )

9.13
Use cosine ratio to calculate angles and side (Cos = $\frac{a}{h}$ )

9.14
Use tangent ratio to calculate angles and side (Tan = $\frac{o}{a}$ )

9.15
Combination of SohCahToa questions

9.16
Law of sines

9.17
Law of cosines

9.18
Sine graph: y = sin x

9.19
Cosine graph: y = cos x

9.20
Tangent graph: y = tan x

9.21
Cotangent graph: y = cot x

9.22
Secant graph: y = sec x

9.23
Cosecant graph: y = csc x

9.24
Graphing transformations of trigonometric functions

9.25
Determining trigonometric functions given their graphs

9.26
Quotient identities and reciprocal identities

9.27
Pythagorean identities

9.28
Sum and difference identities

9.29
Doubleangle identities

9.30
Word problems relating ladder in trigonometry

9.31
Word problems relating guy wire in trigonometry

9.32
Other word problems relating angles in trigonometry
Don't just watch, practice makes perfect.
Do better in math today
Chapter 9 Topics:

9.1
Converting between degrees and radians

9.2
Radian measure and arc length

9.3
Angle in standard position

9.4
Coterminal angles

9.5
Reference angle

9.6
Find the exact value of trigonometric ratios

9.7
ASTC rule in trigonometry (All Students Take Calculus)

9.8
Unit circle

9.9
Trigonometric ratios for angles in radians

9.10
Solving first degree trigonometric equations

9.11
Determining nonpermissible values for trig expressions

9.12
Use sine ratio to calculate angles and side (Sin = $\frac{o}{h}$ )

9.13
Use cosine ratio to calculate angles and side (Cos = $\frac{a}{h}$ )

9.14
Use tangent ratio to calculate angles and side (Tan = $\frac{o}{a}$ )

9.15
Combination of SohCahToa questions

9.16
Law of sines

9.17
Law of cosines

9.18
Sine graph: y = sin x

9.19
Cosine graph: y = cos x

9.20
Tangent graph: y = tan x

9.21
Cotangent graph: y = cot x

9.22
Secant graph: y = sec x

9.23
Cosecant graph: y = csc x

9.24
Graphing transformations of trigonometric functions

9.25
Determining trigonometric functions given their graphs

9.26
Quotient identities and reciprocal identities

9.27
Pythagorean identities

9.28
Sum and difference identities

9.29
Doubleangle identities

9.30
Word problems relating ladder in trigonometry

9.31
Word problems relating guy wire in trigonometry

9.32
Other word problems relating angles in trigonometry
Don't just watch, practice makes perfect.
Coterminal angles
Lessons

1.
Coterminal Angles
i) Determine one positive coterminal angle and one negative coterminal angle
ii) Express the coterminal angles in general form
Coterminal angles
Don't just watch, practice makes perfect.
We have 824 practice questions in PreCalculus for you to work through.