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9.3 SPM Practice (Short Questions)

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Question 10:
Which of the following graph represents y = cos 2x?
 


Solution:
Answer: C


Question 11:
Which of the following graph represents y = cos x for 0o ≤ x ≤ 180o?
 


Solution:
Answer: D


Question 12:
Which graph represents part of y = cos x?

 

Solution:
Answer: B