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The sinusoidal function represented in this plot is in the form y=A*cos(ωt+ϕ). Please help on parts a-c.

6 4 2 2 3 4 time Part a What is A? Enter answer here 0 of 3 attempts used CHECK ANSWER Part b What is w? Enter answer here 0 of 3 attempts used CHECK ANSWER Part c What is ? There are many answers possible after all you can always add or subtract π from the argument of a cos function without changing its value Give the answer with the smallest absolute value. Enter answer here

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