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Lesson details

Key learning points

  1. In this lesson, we will look at the graphs made by the sine and cosine functions and compare them to highlight similarities and differences.

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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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6 Questions

Q1.
Fill in the gap: You can use the inverse sine function to work out the unknown angle, when given the opposite and ................. in a right- angled triangle.
adjacent
Correct answer: hypotenuse
symmetry
Q2.
Fill in the gap: You can use the inverse cosine function to work out the unknown angle, when given the hypotenuse and ................. in a right- angled triangle.
Correct answer: adjacent
opposite
symmetry
Q3.
Use the sine ratio to find out the missing angle in the triangle shown below.
An image in a quiz
15 degrees
Correct answer: 30 degrees
45 degrees
60 degrees
Q4.
Which is the correct method to work out the missing angle?
An image in a quiz
Correct answer: Cosine
Pythagoras
Sine
Q5.
Which is the correct method to work out the missing angle?
An image in a quiz
Cosine
Pythagoras
Correct answer: Sine
Q6.
Which is the correct method to work out the length of missing side?
An image in a quiz
Correct answer: Cosine
Pythagoras
Sine

7 Questions

Q1.
The image below shows the graph of ......
An image in a quiz
Correct answer: Cosine x
Quadratic
Sine x
Q2.
The image below shows the graph of ......
An image in a quiz
Cosine x
Correct answer: Sine x
Q3.
Use the graph to give an approximate value for sin (40).
An image in a quiz
Correct answer: 0.64
0.68
6.4
6.8
Q4.
Use the graph to give an approximate value for cos (80).
An image in a quiz
0.1
Correct answer: 0.18
0.2
Q5.
Which statement is correct?
cos 30 = cos 90
cos 30 = sin 30
Correct answer: cos 60 = sin 30
Q6.
Is this true or false? sin 90 = 1
False
Correct answer: True
Q7.
Is this true or false? Cos 90 = 1
Correct answer: False
True