Course Content
Algebra 1
0/14
Algebra 2
0/16
Trigonometry 1
0/18
Coordinate Geometry of the Line
0/14
Probability 1
0/14
Geometry 1
0/6
Differential Calculus
0/10
Trigonometry 2
0/10
Sequences & Series
0/12
Statistics 1
0/9
Coordinate Geometry of the Circle
0/14
Algebra 3
0/16
Complex Numbers
0/12
Geometry 2
0/4
Integration
0/8
Differential Calculus Applications
0/8
Financial Maths
0/8
Length, Area & Volume
0/6
Probability 2
0/9
Functions
0/15
Statistics 2
0/4
Inferential Statistics
0/6
Digital Lessons

Knowledge Check Quiz

#### EXAMS.IE

##### Unit Circle

Hint

Each point on the circumference has coordinates $$(\cos\alpha,\sin\alpha)$$.

1 / 5

The $$x$$ coordinate on the circumference of the unit circle corresponds to which of the following?

Hint

Each point on the circumference has coordinates $$(\cos\alpha,\sin\alpha)$$.

2 / 5

The $$y$$ coordinate on the circumference of the unit circle corresponds to which of the following?

Hint

Each point on the circumference has coordinates $$(\cos\alpha,\sin\alpha)$$.

3 / 5

If $$(x,y)$$ is the coordinate of a point on the unit circle, which of the following refers to $$\tan\alpha$$?

Hint

$$\cos\alpha$$ refers to the $$x$$ coordinate of a point on the unit circle.

4 / 5

$$\cos(-\alpha)=\cos\alpha$$

Hint

$$\sin\alpha$$ refers to the $$y$$ coordinate of a point on the unit circle.

5 / 5

$$\sin(-\alpha)=\sin\alpha$$