Eric Nicholas K's answer to Kathy's Secondary 4 A Maths Singapore question.
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Q13
Date Posted:
4 years ago
Forgot to add:
Range of y = |cos 2x| is 0 to 1 (since the graph lies within y = 0 and y = 1)
Range of y = |cos 2x| - 1 is -1 to 0 (since the graph lies within y = -1 and y = 0)
Range of y = 1 - |cos 2x| is 0 to 1 (since the graph lies within y = 0 and y = 1)
Range of y = |cos 2x| is 0 to 1 (since the graph lies within y = 0 and y = 1)
Range of y = |cos 2x| - 1 is -1 to 0 (since the graph lies within y = -1 and y = 0)
Range of y = 1 - |cos 2x| is 0 to 1 (since the graph lies within y = 0 and y = 1)
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