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Consider the function y = 3cos2x− π 2for 0 ≤ x ≤ π. Follow the steps below to obtain a sketch the graph of y. (a) State the amplitude, period and phase shift in the graph of this function.

 Jun 8, 2016
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Consider the function y = 3cos2x− π 2for 0 ≤ x ≤ π. Follow the steps below to obtain a sketch the graph of y. (a) State the amplitude, period and phase shift in the graph of this function.

 

Are there supposed to be any brackets here?  YES there are supposed to be but I am not sure where.....

what is that last 2 for?

Please make your question clearer.

 Jun 8, 2016

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