Trigonometry and Periodic Functions Quiz

Question 1

On the unit circle, sin θ is...

Accepted Answer

The y value

Question 2

What does 'absolute value' mean?

Accepted Answer

Change negative to positive

Question 3

The base angle is...

Accepted Answer

The simplified angle formed with the x axis

Question 4

The general equation of a sine graph (with no phase shift) is...

Accepted Answer

y=AsinBx + D

Question 5

What information do we need to use the sine rule for triangles without a right angle?

Accepted Answer

Two sides and an angle opposite the sides

Question 6

On the unit circle, cos θ is...

Accepted Answer

The x value

Question 7

In which of these cases could the cosine rule NOT be used?

Accepted Answer

When we only have the three angles

Question 8

When measuring angles on the unit circle we measure:

Accepted Answer

Anti-clockwise from the positive x axis

Question 9

Which of these are we calculating when we write |A| ?

Accepted Answer

The amplitude

Question 10

The radius of the Unit Circle is...

Accepted Answer

1

Question 11

The general equation of a cosine graph (with no phase shift) is...

Accepted Answer

y=AcosBx + D

Question 12

Which of these helps us choose the equation needed to solve a right angled triangle?

Accepted Answer

SOHCAHTOA

Question 13

There are ______ degrees in a full rotation around the unit circle

Accepted Answer

360

Question 14

There are _____ radians in a full rotation around the unit circle

Accepted Answer

2π

Questions 14