Question 10:
Which of the following graph represents y = cos 2x?
![](http://spmmathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/5/2015/02/Picture19.png)
Solution:
Answer: C
Question 11:
Which of the following graph represents y = cos x for 0o ≤ x ≤ 180o?
![](http://spmmathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/5/2015/02/Picture23.png)
Solution:
Answer: D
Question 12:
Which graph represents part of y = cos x?
![](http://spmmathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/5/2015/02/Picture24.png)
Solution:
Answer: B